Chocolate Peanut Butter Brownies
["1 pkg. yellow cake mix", "1 c. peanut butter", "1/2 c. melted margarine", "2 eggs", "1 (12 oz.) pkg. semi-sweet chocolate chips", "1 (15 oz.) can sweetened condensed milk", "2 Tbsp. margarine", "1/2 tsp. salt", "1 c. chopped pecans", "2 tsp. vanilla"]
["Stir until it holds together the cake mix, peanut butter, margarine and eggs.", "Press 2/3 of batter into the bottom of an ungreased 9 x 13-inch pan."]
["yellow cake mix", "peanut butter", "margarine", "eggs", "semi-sweet chocolate chips", "condensed milk", "margarine", "salt", "pecans", "vanilla"]