Fruity Pebbles Krispie Treats

In a large pan, melt the butter with your stove turned to medium heat. Use a wooden spoon to stir the butter Pour the whole bag of marshmallows into the pot and stir them until they are melted and mixed with the butter. Add the cereal into the pot and stir it up until all of the cereal is well mixed. Pour the mixture into a large bread pan which has been sprayed with nonstick cooking spray. Allow bars to cool slightly before serving.