Marshmallow Rainbow Cereal Bars

2 min read September 13, 2026 Missy and Kristen
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Create this fun snack for any occasion! We made these cereal bars as a special treat at our Rainbow Crafting Playdate. See how we made them here!

Recipe Time
40 to 50 min
Difficulty
Intermediate
Servings
7 to 9 Servings
Ingredients:
  • 10 c. Rainbow Loop Cereal
  • 16 oz. Bag of Marshmallows
  • 5 Tbsp. Butter
  • Rainbow Hard Candy Sticks
Step
1

Start making this rainbow inspired sweet treat by measuring our 10 cups of Rainbow Loop cereal and pouring it into a large mixing bowl.

Marshmallow Rainbow Cereal Bars step 1
Step
2

Next, in a separate bowl, add the 16 oz. bag of marshmallows and 5 tablespoons of butter to a microwave safe bowl and heat until the marshmallows are melted. Be sure to mix the butter and marshmallow combination well.

Marshmallow Rainbow Cereal Bars step 2
Step
3

Now, add the butter and marshmallow mixture to the Rainbow Loop cereal and mix all ingredients together until they are well combined.

Marshmallow Rainbow Cereal Bars step 3 part 1
Marshmallow Rainbow Cereal Bars step 3 part 2
Step
4

Place the cereal and marshmallow mixture into a baking dish lined with parchment paper and allow the the mixture to fully cool and set.

Marshmallow Rainbow Cereal Bars step 4
Step
5

Now that the cereal mixture is completely cooled, use a sharp knife to cut the recipe into squares.

Marshmallow Rainbow Cereal Bars step 5
Step
6

Add a Rainbow Hard Candy Sticks to transform your bar into a pop. We love that the handle is also a rainbow and that is is completely edible!

Marshmallow Rainbow Cereal Bars step 6

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