Step 1

Lightly butter a 9x13 baking pan and set aside. Save some butter for greasing your hands later on.

Step 2

Melt together the marshmallows and the butter. You can do this on the stove in a very large pot over medium heat, or you can use a large microwave safe bowl and heat the ingredients in 30 second intervals, stirring between heating until they are smooth and melted together.

Step 3

Once the ingredients are melted together and mixed until smooth add in the Fruity Pebbles. Very gently mix until the cereal is coated evenly with the marshmallow.

Step 4

Spoon into the prepared 9x13 pan. Butter your hands lightly, then press the mixture firmly down into the pan, spreading it out from corner to corner in one even layer. Butter your hands again if the mixture starts to stick.

Step 5

Cover with plastic wrap and let set on the counter for 1-2 hours. DO NOT REFRIGERATE. This will make rock hard cereal bars!!!

Step 6

Slice and enjoy!