Spray a 9 x 9 or 7 x 11 baking dish with cooking spray.

In a medium saucepan combine 1 tablespoon of butter and 1 1/2 cups of marshmallows. Heat over medium heat, stirring occasionally, until the mixture is melted. Remove from heat and mix in blue food coloring and 2 cups of Rice Krispies.

Quickly spread the blue treats into the bottom of the prepared pan. Use a wooden spoon sprayed with cooking spray to smooth it out. Refrigerate for 5 minutes.

Meanwhile, combine 1 tablespoon of butter and 1 1/2 cups of marshmallows in a medium saucepan. Heat over medium heat, stirring occasionally, until the mixture is melted. Remove from heat and mix in 2 cups of Rice Krispies.

Quickly spread the white treats on top of the blue treats, using a wooden spoon sprayed with cooking spray. Refrigerate for 5 minutes.

In a medium saucepan combine 1 tablespoon of butter and 1 1/2 cups of marshmallows. Heat over medium heat, stirring occasionally, until the mixture is melted. Remove from heat and mix in red food coloring and 2 cups of Rice Krispies.

Quickly spread the red treats on top of the white treats, using a wooden spoon sprayed with cooking spray. Refrigerate for 5 minutes.

Remove from refrigerator and cut into squares.