Peanut Butter Fudge Bars
["1 (18 1/2 oz.) pkg. yellow cake mix", "1 c. creamy peanut butter", "1/2 c. butter, melted", "2 eggs", "1 (14 oz.) can sweetened condensed milk", "2 Tbsp. butter, melted", "2 tsp. vanilla", "1/2 tsp. salt", "1 (12 oz.) pkg. semi-sweet chocolate chips", "1 c. flaked coconut", "1 c. chopped walnuts"]
["Combine cake mix, peanut butter, 1/2 cup melted butter and eggs.", "Stir until well blended.", "Press 2/3 of mixture onto bottom of ungreased, 13 x 9 x 2-inch pan.", "Reserve remaining mixture for topping."]
["yellow cake", "peanut butter", "butter", "eggs", "condensed milk", "butter", "vanilla", "salt", "semi-sweet chocolate chips", "flaked coconut", "walnuts"]