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Delicious Ruler Rice Krispies Treats Kids Will Love

Published: Sep 4, 2025 by Sierra Lane · This post may contain affiliate links · Leave a Comment

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As I rummaged through my pantry, I stumbled upon an old favorite, Rice Krispies cereal. A spark of creativity ignited, and before I knew it, I was whisking up a batch of Ruler Rice Krispies—an exciting twist on the classic treat. This playful recipe not only brings back nostalgic memories of childhood snacks but also packs a fun visual punch that’s sure to impress both kids and adults alike. With just 25 minutes of easy prep, you can create these delightful dessert bars that are perfect for any gathering, school event, or even a cozy evening at home. Plus, they’re customizable with vibrant colors and fun decorations that will engage every aspiring chef in your kitchen. Ready to grab some marshmallows and channel your inner artist? Let’s dive into this tasty adventure!

Ruler Rice Krispies

Why are Ruler Rice Krispies so special?

Fun and Creative: This recipe transforms the traditional Rice Krispies into playful ruler-shaped treats that are visually appealing and super fun for kids.

Quick and Easy: With just 25 minutes from start to finish, you’ll have a delicious dessert ready to impress—perfect for those busy weeknights or last-minute gatherings.

Endless Customizations: You can personalize your treats with various colors using gel food coloring, making them ideal for parties, school events, or any celebration where creativity is key.

Nostalgic Appeal: These delightful bars evoke childhood memories while adding a modern twist, making them beloved by both adults and kids. Grab more ideas with our easy Rice Krispies treats for added inspiration!

Crowd Favorite: Ruler Rice Krispies are not only easy to make but also guaranteed to be a hit with family and friends, sparking joy and smiles at any gathering.

Ruler Rice Krispies Ingredients

Get ready to create colorful and fun treats!

For the Base

  • 6 cups Rice Krispies cereal – the essential crunchy ingredient for your delicious Ruler Rice Krispies.
  • 1 (10 oz) bag mini marshmallows – provides the gooey sweetness that holds the cereal together.
  • 3 tablespoons butter – adds richness and helps in melting the marshmallows for a smooth mixture.

For the Colors

  • Red gel food coloring – gives the red layer its vibrant hue; feel free to adjust for your desired intensity.
  • Yellow gel food coloring – lends a cheerful color to the second layer; substitute with other colors as you like!
  • Black gel food coloring – perfect for adding accented details to your treats, enhancing their visual appeal.

For the Decoration

  • ½ cup white candy melts – melts beautifully to create a shiny, metal-like edge on your ruler treats.
  • ½ cup chocolate chips (or brown candy melts) – for creating the ruler markings; chocolate flavor complements the sweet bars.
  • Black decorating gel or black edible marker – allows you to add precise numbers and lines, giving your treats an authentic ruler look.

For Preparation

  • Non-stick cooking spray – ensures your treats don’t stick to the baking dish for easy removal.
  • Parchment paper – helps in lining your dish, making cleanup a breeze and keeping your treats in perfect shape.

With these ingredients, you're well on your way to creating delightful Ruler Rice Krispies that will bring smiles to faces of all ages!

Step‑by‑Step Instructions for Ruler Rice Krispies

Step 1: Prepare the Baking Dish
Begin by prepping your 9×13 inch baking dish. Line it with parchment paper, ensuring it covers the bottom and sides, then spray the parchment and the dish with non-stick cooking spray to prevent sticking. This step is crucial for easy removal of your colorful Ruler Rice Krispies later on.

Step 2: Melt the Butter and Marshmallows
In a large saucepan, melt 3 tablespoons of butter over low heat. Once melted, add the entire 10 oz bag of mini marshmallows, stirring continuously for about 5–7 minutes until they are completely melted and smooth. This gooey mixture forms the base of your delightful treats, so keep an eye on it to prevent burning.

Step 3: Mix in the Rice Krispies
Remove the melted marshmallow mixture from heat and immediately add in 6 cups of Rice Krispies cereal. Stir thoughtfully until each piece is coated in the gooey blend, taking about 2–3 minutes. You want to ensure that it’s evenly mixed to create delicious Ruler Rice Krispies, ready for coloring.

Step 4: Divide and Color the Mixture
Once combined, transfer the mixture to a clean working surface or bowl and divide it into three equal portions. Add yellow gel food coloring to one portion, red to the second, and leave the third plain. Mix each portion thoroughly until the colors are vibrant and consistent, allowing the creative fun to begin!

Step 5: Layer the Mixtures in the Dish
Take the red mixture and press it firmly into the bottom third of your prepared baking dish, using a spatula to smooth it out evenly. Next, layer the yellow mixture in the center third, followed by the plain mixture on top. Make sure each layer is compact and evenly spread, and then let it cool completely for about 30 minutes.

Step 6: Cut the Ruler Shapes
Once your treats have set, it’s time to cut them into long rectangle bars to resemble rulers. Carefully lift the entire block out of the baking dish using the parchment paper, and place it on a cutting board. Use a sharp knife to cut these evenly-sized pieces, making them about 1 inch wide.

Step 7: Melt the Candy Coatings
In separate microwave-safe bowls, melt ½ cup of white candy melts and ½ cup of chocolate chips (or brown candy melts). Heat in 30-second intervals, stirring in between until both mixtures are smooth and completely melted. This step takes about 1–2 minutes per bowl, so keep an eye on them to avoid overheating.

Step 8: Decorate Your Ruler Rice Krispies
Using a piping bag or a spoon, create ruler markings with the melted chocolate on each treat. For added flair, use the white candy melts to form a prominent “metal edge” on one side of the bars, making them look just like real rulers.

Step 9: Final Touches with Edible Markers
Utilize black decorating gel or a black edible marker to add numbers and small lines, elevating the appearance of your Ruler Rice Krispies. This added detail gives them character and charm, transforming them into fun, educational treats perfect for kids.

Step 10: Allow to Set Before Serving
Finally, let your decorated Ruler Rice Krispies sit at room temperature for about 15–20 minutes, allowing the coatings to set properly. After they’re firm, you can serve them or wrap them up for later enjoyment. Enjoy the smiles that come from these creative and vibrant treats!

Ruler Rice Krispies

What to Serve with Ruler Rice Krispies

Imagine the joy your loved ones will experience when you pair these delightful treats with complementary flavors that enhance their playful spirit!

  • Fruity Skewers: A colorful mix of fresh fruits adds a refreshing touch to balance the sweetness of the Ruler Rice Krispies.

  • Creamy Yogurt Dip: Serve with a chocolate or vanilla yogurt dip for a creamy contrast that kids will absolutely adore.

  • Milkshakes: Whip up some delicious milkshakes for a fun and nostalgic beverage that pairs perfectly with these sugary treats.

  • Popcorn: Add a light and salty popcorn mix on the side for a crunchy companion that provides a lovely texture contrast.

  • Fruit Punch: A fruity punch will refresh the palate, making it a delightful drink for both children and adults during snack time.

  • Chocolate-Covered Pretzels: Enjoy the sweet and salty combination that complements the sweetness of the Ruler Rice Krispies, making every bite exciting.

  • Ice Cream Sundaes: Elevate dessert time by serving these sweet treats with a scoop of ice cream, creating a fun and indulgent experience.

  • Nut Butter Dippers: Offer creamy peanut or almond butter on the side, allowing everyone to dip their Ruler Rice Krispies for an extra layer of flavor.

Expert Tips for Ruler Rice Krispies

Timing Matters: Make sure to work quickly once the marshmallow mixture is melted. The longer you wait, the harder it may be to mix with the Rice Krispies.

Don’t Rush the Layers: Take your time pressing each colored mixture into the baking dish. This ensures distinct layers that look great when cut.

Use Non-Stick Spray: Generously coat the parchment paper and dish with non-stick cooking spray to avoid any messy mishaps when removing your Ruler Rice Krispies.

Colorful Creativity: Feel free to experiment with food coloring! Customizing the hues can make these treats even more festive for different occasions.

Smooth Corners: When cutting the bars, use a sharp knife and a gentle sawing motion for clean edges. This will enhance the “ruler” appearance of your treats.

By following these tips, you’ll ensure your Ruler Rice Krispies turn out not only beautiful but delicious!

Ruler Rice Krispies Variations

Feel free to get creative with your Ruler Rice Krispies by trying these fun and flavorful twists!

  • Dairy-Free: Substitute butter with coconut oil and use dairy-free chocolate chips for a delicious non-dairy alternative. The result is just as rich and tasty!

  • Gluten-Free: Make sure your Rice Krispies cereal is certified gluten-free, ensuring everyone can enjoy these treats without worry. It's just as easy and delicious!

  • Nutty Crunch: Add ½ cup of chopped nuts or nut butter to the marshmallow mixture for an extra crunch and depth of flavor that enhances every bite. This also adds a delightful texture contrast!

  • Flavor Boost: Stir in 1 teaspoon of vanilla or almond extract into the melted marshmallows for an aromatic touch that elevates the overall taste profile. Your guests will be curious about the secret ingredient!

  • Colorful Swirls: Instead of layering, mix small amounts of different colored Rice Krispies together for a vibrant swirl effect. This adds a playful touch that’s sure to brighten anyone’s day.

  • Spicy Kick: For an unexpected twist, sprinkle in a pinch of cayenne pepper or cinnamon into the melted marshmallows. The heat will surprise and delight, making your treats stand out!

  • Chocolate-Dipped: Dip the ends of each ruler treat in melted chocolate and sprinkle with colorful sprinkles for a festive, decadent finish. These will look great for any celebration!

  • Mini Rulers: Create mini-sized rulers by using a smaller baking dish and cutting the treats into bite-sized pieces. They are perfect for kids’ parties or as fun snacks on-the-go!

Feel inspired? With such a delightful range of variations, you can make Ruler Rice Krispies that suit every occasion and satisfy every palate. After you’re done, check out our ideas for easy Rice Krispies treats or other exciting recipes to keep the fun going!

Make Ahead Options

These Ruler Rice Krispies are perfect for busy home cooks looking to save time without sacrificing fun! You can prepare the base by melting the butter and marshmallows, mixing in the Rice Krispies, and dividing the mixture into portions up to 24 hours in advance. Just store each colored portion in an airtight container at room temperature. To prevent any drying out, cover them with a damp paper towel. When you’re ready to finish, simply layer the mixtures in your prepared dish, allow them to set, and then cut your treats into ruler shapes. With this meal prep strategy, you'll have delightful and vibrant Ruler Rice Krispies ready in no time!

How to Store and Freeze Ruler Rice Krispies

Room Temperature: Keep your Ruler Rice Krispies in an airtight container at room temperature for up to 3 days to maintain freshness and flavor.

Fridge: If you prefer a cooler treat, store them in the fridge for up to 1 week. Just be sure they’re wrapped well to prevent them from drying out.

Freezer: You can freeze your Ruler Rice Krispies for up to 2 months. Wrap individual bars tightly in plastic wrap, then place them in a freezer-safe bag for extra protection.

Reheating: To enjoy them after freezing, simply let the bars thaw at room temperature for about 30 minutes. You can also warm them in the microwave for a few seconds to enjoy that fresh, gooey goodness again!

Ruler Rice Krispies

Ruler Rice Krispies Recipe FAQs

How do I choose the best ingredients for Ruler Rice Krispies?
Absolutely! When selecting your ingredients, opt for fresh mini marshmallows that don’t have dark spots or hardened edges. Ensure your Rice Krispies cereal is still crunchy and not stale, as this will significantly affect the texture of your treats.

What’s the best way to store Ruler Rice Krispies?
To keep your Ruler Rice Krispies fresh for up to 3 days, store them in an airtight container at room temperature. If you prefer a cooler snack, you can refrigerate them for up to 1 week, just make sure they are wrapped properly to prevent drying out.

Can I freeze Ruler Rice Krispies?
Yes, you can freeze your Ruler Rice Krispies for up to 2 months! First, wrap each individual bar tightly in plastic wrap. Then, place them in a freezer-safe ziplock bag. When you’re ready to enjoy them, simply let them thaw at room temperature for about 30 minutes for that delightful freshness!

What should I do if my Rice Krispies mixture is too sticky?
Very! If your mixture feels overly sticky, try lightly greasing your spatula with non-stick spray or butter when spreading the mixtures in the tray. If it’s really messy, you could gently microwave the mixture for a few seconds to soften it and allow for easier handling.

Are there any dietary concerns with Ruler Rice Krispies?
For those with dietary restrictions, be aware that the ingredients generally contain gluten (from Rice Krispies) and may also contain allergens like dairy (from butter) or chocolate (if using chocolate chips). Always opt for gluten-free Rice Krispies if needed, and check food coloring labels if allergies are a concern.

What if I run out of gel food coloring?
No worries! If gel food coloring is in short supply, liquid food coloring can work in a pinch. Just remember that it may not provide the same vibrant colors, so you might need to use more. Alternatively, using sprinkles or colored sugar can add a fun flair without coloring the mixture itself!

Ruler Rice Krispies

Delicious Ruler Rice Krispies Treats Kids Will Love

Ruler Rice Krispies are a fun twist on the classic treat, engaging kids with colorful designs and easy preparation.
Print Recipe Pin Recipe
Prep Time 25 minutes mins
Cooling Time 30 minutes mins
Total Time 55 minutes mins
Course Desserts
Cuisine American
Servings 12 bars
Calories 150 kcal

Equipment

  • 9×13-inch baking dish
  • large saucepan
  • spatula
  • sharp knife
  • microwave-safe bowls
  • Piping bag

Ingredients
  

For the Base

  • 6 cups Rice Krispies cereal the essential crunchy ingredient for your delicious Ruler Rice Krispies.
  • 1 bag (10 oz) mini marshmallows provides the gooey sweetness that holds the cereal together.
  • 3 tablespoons butter adds richness and helps in melting the marshmallows.

For the Colors

  • 1 bottle red gel food coloring gives the red layer its vibrant hue.
  • 1 bottle yellow gel food coloring lends a cheerful color to the second layer.
  • 1 bottle black gel food coloring perfect for adding accented details.

For the Decoration

  • ½ cup white candy melts melts beautifully to create a shiny edge.
  • ½ cup chocolate chips (or brown candy melts) for creating the ruler markings.
  • 1 tube black decorating gel or black edible marker to add precise numbers and lines.

For Preparation

  • 1 can non-stick cooking spray ensures your treats don’t stick to the baking dish.
  • 1 roll parchment paper helps in lining your dish.

Instructions
 

Step-by-Step Instructions for Ruler Rice Krispies

  • Prepare the Baking Dish by lining it with parchment paper and spraying with non-stick cooking spray.
  • Melt 3 tablespoons of butter over low heat, then add the entire 10 oz bag of mini marshmallows and stir until melted.
  • Mix in 6 cups of Rice Krispies cereal until fully coated.
  • Divide the mixture into three equal portions and color them with food coloring.
  • Layer the mixtures in the baking dish, starting with the red layer at the bottom.
  • Cut the treats into ruler shapes after they have set.
  • Melt white candy melts and chocolate chips in separate bowls.
  • Decorate the treats with melted chocolate for markings and white candy melts for a metal edge.
  • Add final touches with black decorating gel or edible marker.
  • Let the treats set at room temperature before serving.

Notes

These Ruler Rice Krispies are ideal for gatherings, parties, or easy family snacks. Customize colors for any occasion!

Nutrition

Serving: 1barCalories: 150kcalCarbohydrates: 25gProtein: 1gFat: 5gSaturated Fat: 3gCholesterol: 10mgSodium: 100mgSugar: 12gIron: 2mg
Keyword dessert bars, easy recipes, kids treats, Rice Krispies treats, Ruler Rice Krispies
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About Sierra Lane

Season-obsessed cook sharing quick, produce-packed recipes for everyday meals—straight from my farmers’ market basket to your table.

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