Step 1

Spray a 9-inch cake pan or 9-inch spring form pan with non-stick spray.

Step 2

In a microwave safe bowl add marshmallows and butter for the green part of the watermelon. Heat for 45 seconds on high. Remove from the oven, add the green food coloring and mix until smooth and melted.

Step 3

Add in the rice krispie cereal and mix until evenly blended and a nice green color.

Step 4

Add the green krispies to the pan, and press around the edges. It will be 1-1 1/2 inches thick around the edge to make the "rind" of the watermelon. Set aside while you made the center.

Step 5

In a microwave safe bowl add the marshmallows and butter for the red part of the watermelon. Heat for 1 minute on high. Remove from the microwave and add the red food color. Mix until smooth and a bright red color.

Step 6

Add in the rice krispie cereal and mix until evenly blended.

Step 7

Pour the red krispies into the center of the cake pan and press into an even layer.

Step 8

Sprinkle mini chocolate chips over the top and gently press down for the "seeds" to stick.