Prepare a cookie sheet with wax paper, set aside.

In a large microwave safe bowl, melt the milk chocolate chips, stirring often to prevent burning.

Remove from microwave and pour into prepared cookie sheet.

Use a spatula to create an even layer.

Set aside.

In a medium sized microwave safe bowl melt the white chocolate chips.

Remove from microwave and stir in mint extract.

Once well combined, stir in green food coloring.

Pour white chocolate on top of milk chocolate.

Use a butter knife to drag through both chocolate layers and swirl the colors together.

Cool in fridge for 2 hours, then cut or break into pieces to serve.