Brownie-Mint Sundae Squares
["1 (21.5 or 23.6 oz.) pkg. fudge brownie mix", "1 (14 oz.) can sweetened condensed milk", "2 tsp. peppermint extract", "2 c. heavy cream, whipped", "1/2 c. mini chocolate chips", "green food coloring (optional)"]
["Preheat oven.", "Prepare brownie mix as directed on package. Spoon batter into a foil-lined greased 13 x 9-inch baking pan. Bake as directed.", "Cool thoroughly."]
["brownie mix", "condensed milk", "peppermint", "heavy cream", "chocolate chips", "green food coloring"]