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Home » Recipes » fun party treats

spring Rice Krispie treat cake

Published: May 8, '20 · Modified: Nov 1, '21 · By: Meaghan Mountford · This post may contain affiliate links.

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Decorate a beautiful (and easy) Rice Krispie treat cake for spring! 

spring rice krispie treat cake

 

Rice Krispie Treat cake

I love this idea for an easy, no-bake dessert: A Rice Krispie Treat "cake." Simply  mold your treats in a cake pan and decorate any way you like for any occasion. These spring flowers would be perfect for Easter, Mother's Day, or just to make for fun. 

Here, I use my never-fail royal icing recipe to decorate the jumbo Rice Krispie treat. I prefer royal icing to decorate two-dimensional designs, as it dries very well. However, you may use any of your favorite icing or frosting recipes. And of course, I start with our best-ever rice krispie treat recipe. 

 

spring rice krispie treat cake

 

how to make a spring Rice Krispie Treat cake 

To make life easier, I spray my all my bowls and spatulas with non-stick canola cooking spray. You can also use coconut oil cooking spray. 

 

spring rice krispie treat cake

 

  • Spray a large bowl with cooking spray or rub with butter or Crisco. Add 4 ⅔ cups Rice Krispies cereal.  Line a baking tray with parchment paper and set aside. Line a 9-inch cake pan with non-stick foil OR regular foil lightly greased. 
    • TIP: If you have an 8-inch pan, use that to flatten the foil in the 9-inch cake pan. 

 

  • In a large, microwave-safe bowl, place  4 tablespoons of salted butter and 10 ounces of marshmallows. Microwave for 1 minute on high. Stir until very smooth. (Add another 15 seconds if needed, but try and stir first and use the residual heat to fully melt the butter and marshmallows.) 
    • Be sure to keep your eye on the marshmallows! They will puff up.
    • 10 ounces of marshmallows equals 6 cups of mini marshmallows (usually 1 bag) OR about 40 regular marshmallows, although marshmallow density varies with brands, so these are general guidelines. 

s'mores rice krispie treats butter and marshmallows in a bowl

 

  • Pour the marshmallow mixture over the cereal. Stir gently until the mixture is very well combined. 

 

  • Transfer to the prepared cake pan. Grease a spatula with cooking spray, and flatten evenly. You can also use the 8-inch cake pan here to help you flatten the treats.  

spring rice krispie treat cake in pan

 

  • Let cool completely, about 2 hours. You may also chill more quickly in the refrigerator for 1 hour. 

 

  • When ready, decorate your cake! 

 

spring rice krispie treat cake

 

 

 

 

how to decorate a cereal treat cake

  • You may use any of your favorite recipes for icing or frosting. Here I use my royal icing recipe. 

 

  • Divide the icing or frosting and tint any colors you prefer. My favorite food coloring is Americolor Soft Gel Paste. Super Black, Red Red, Orange, Egg Yellow, Electric Pink, Leaf Green, Electric Green, and Sky Blue used here. You may use less colors if you wish. 

 

  • Assemble disposable decorating bags with couplers and decorating tips (sizes 3 for smaller detail and size 4 for larger spaces). Fill with icing and close tightly with a rubber band.

 

  • Pipe your design and let set. 

 

spring rice krispie treat cake with bags of royal icing

SPRING Rice Krispie Treat cake decorated with royal icing flowers. Great for spring, Mother's Day, Easter.

 

supplies and ingredients 

Here are the specific supplies and ingredients I used to make my Rice Krispie Treats.



 

spring rice krispie treat cake

 

printable recipe 

spring rice krispie treat cake

spring Rice Krispie Treat cake

Meaghan Mountford
A fun and easy no-bake dessert for Mother's Day: Spring Rice Krispie Treat cake.
Print Recipe Pin Recipe
Prep Time 1 hr
Cook Time 1 min
Let set for 2 hrs
Total Time 3 hrs 1 min
Course Dessert
Cuisine American
Servings 12 pieces
Calories 210 kcal

Equipment

  • 9-inch cake pan
  • non-stick aluminum foil
  • cooking spray
  • disposable decorating bags
  • couplers
  • size 3 and 4 tips
  • food coloring

Ingredients
  

  • 4 ⅔ cups Rice Krispies cereal
  • 10 ounces marshmallows 40 regular OR 6 cups mini
  • 4 tablespoons salted butter
  • 1 batch royal icing

Instructions
 

  • Line a 9-inch cake pan with non-stick aluminum foil, or with lightly-greased regular foil. Set aside.
  • In a large, greased bowl, place the cereal.
  • In a large, microwave-safe bowl, place the marshmallows and butter. Heat for 1 minute. Stir very well, using the residual heat to fully melt the marshmallows and butter. Stir until very smooth.
  • Pour the marshmallow mixture over the cereal and gently stir to fully combine.
  • Transfer the mixture to the cake pan and press evenly. TIP: Use an 8-inch cake pan to help flatten the treats. Let set for about 2 hours, or 1 hour in the fridge.
  • Prepare royal icing, divide, and tint any preferred colors.
  • Prepare decorating bags with couplers and tips, fill with your icing, and close tightly with rubber bands.
  • Decorate! The icing will fully set overnight.

Notes

For food coloring, I use Americolor Soft Gel Pastes: Super Black, Red Red, Electric Pink, Electric Green, Leaf Green, Egg Yellow, Orange, Sky Blue. (You needn't use that many colors.) 
You can find my royal icing recipe at thedecoratedcookie.com/royal-icing-recipe/
Keyword rice krispie treat cake

spring rice krispie treat cake

 

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We love creating easy Rice Krispie Treats recipes to share with you and hope you find our tips and instructions helpful. ___ - Beth and Meaghan
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  1. Regina D.

    May 10, 2020 at 7:12 pm

    This is such a wonderful idea. Your design is so pretty. I can't wait to make my own rice krispie treat cake.

    Reply

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Beth and Meaghan from How To Make Cereal Treats

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