Put the butter in a large sauce pan over medium high heat.

Once melted added in the marshmallows and stir occasionally until melted.

Add in the green food coloring and mix.

Remove from heat and add in the Rice Krispies cereal and sprinkles and stir to coat.

Spread into a greased 8 x 8 baking dish using a wooden spoon. Put on additional green and gold sprinkles.

Let cool for 15-20 minutes then cut into squares.