How to Make Rice Krispie Treats Out of this World

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Thanks to the pandemic, we were homeschooling on Earth Day. I decided to have some fun and make a dessert with the boys as a way to celebrate. Food coloring and sprinkles turned plain old Rice Krispie Treats into an Earth Day dessert that was out of this world delicious!

If you’re looking for a great book to read for Earth Day, definitely check out Earth: My First 4.54 Billion Years. This adorable book is J’s favorite and is loaded with fun Earth facts and colorful pictures for the kids to enjoy.

Earth Day Rice Krispy Treats with Earth My First 4.5 Billion Years Book via


Yield: About 16

Earth Day Rice Cereal Treats

Earth Day Rice Cereal Treats via

Food coloring and sprinkles turn a classic dessert into a fun way to celebrate Earth Day!

Prep Time 10 minutes
Cook Time 10 minutes
Additional Time 1 hour
Total Time 1 hour 20 minutes


  • 6 CUPS Puffed Rice Cereal
  • 3 TBS Butter
  • 4 CUPS Marshmallows
  • Sprinkles
  • Food Coloring - Blue and Green


Flat Lay of Rice Krispie Treat Ingredients cereal butter marshmallows butter food coloring sprinkles

1. Divide 6 cups of rice cereal into 3 separate bowls.

2. Add 10 drops of food coloring two of the bowls. Stir gently to coat the cereal. Add more food coloring a few drops at a time to get the desired color.

puffed rice cereal divided in three bowls with food coloring

3. Melt 3 TBS butter in a large pot.

4. Add 4 cups of marshmallows, stir to melt. (This part always seems to take forever!)

marshmallows melting in pot on stove via

5. Take the pot off heat. Mix in rice cereal then sprinkles.

6. Spread the cereal mixture into a greased pan.

7. Allow the treats to cool.

8. Cut and enjoy!

Plate of Rice Krispie Treats dyed blue, green, yellow via


  • I used sprinkles that came with the frosting that I used for J's outer space birthday cake (I used different sprinkles for that). You can use any sprinkles that strike your fancy!
  • For this recipe, I used Campfire Marshmallows, which are made in a peanut/tree nut-free facility. They were Giant Roasters, but I measured out 4 cups and it worked just fine!
  • Serving sizes will depend on the size of your baking dish and how big you cut the pieces.

Did you make this recipe?

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Earth Day Rice Krispy Treats with Earth My First 4.5 Billion Years Book via
For another fun recipe, check out my Candy Corn Rice Krispie Treats. Even candy corn haters love them!

Earth Day Rice Krispie Treats pinterest graphic via

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