Prepare brownie mix as directed, ... chocolate chips. Bake as directed in a 9 x 13 inch pan. When cool, frost with fudge frosting. Cut into 20 squares.
Cream first 3 ingredients, then ... Cool slightly and frost. (I double recipe and ... Reserve 1/2 cup frosting and add green food coloring ... double pan of bars.
Bake brownies in 8-inch square ... 30 minutes. Cool. Frost and let set 15 minutes. ... Spread mixture over mint layer. Refrigerate 30 to 40 minutes, then cut in squares.