1 cup (2 sticks) unsalted butter
1 cup semi-sweet chocolate
1 and 1/2 cups granulated sugar
1/2 cup packed light brown sugar
2 teaspoons pure vanilla extract
1/2 cup + 3 Tablespoons all-purpose flour
1/4 cup unsweetened cocoa powder
1/2 cup (1 stick) unsalted butter, room temperature
2 teaspoons peppermint extract
1-2 drops green food coloring
1/2 cup (1 stick) unsalted butter
1 generous cup semi-sweet chocolate chips