01 -
Preheat oven to 350°F. Line cookie sheets with parchment paper.
02 -
Mix cake mix, oil, and eggs until well combined.
03 -
Drop 2-tablespoon portions 2 inches apart. Bake 10-12 minutes until edges set. Cool 5 minutes on sheet, then transfer to rack.
04 -
Beat butter until smooth. Add powdered sugar, milk, mint extract, salt, and food coloring. Adjust consistency and color as needed.
05 -
Heat cream and chocolate chips in microwave 45 seconds. Let rest 1 minute, then whisk until smooth. Cool 10-15 minutes.
06 -
Spread mint frosting on cooled cookies, then top with ganache. Let set before serving.