Triple Layer Chocolate Bars
["1 1/2 c. graham cracker crumbs", "1/2 c. cocoa, divided", "1/4 c. sugar", "1/3 c. butter, melted", "1 can (14 oz.) Eagle Brand milk", "1/4 c. flour", "1 egg", "1 tsp. vanilla", "1/2 tsp. baking powder", "3/4 c. chopped walnuts", "1 pkg. (12 oz.) semi-sweet chocolate chips"]
["Preheat oven to 350\u00b0.", "Combine crumbs, 1/4 cup cocoa, sugar and butter.", "Press firmly into 13 x 9-inch baking pan.", "In large mixer bowl, beat Eagle Brand milk, flour, remaining 1/4 cup cocoa, egg, vanilla and baking powder.", "Add walnuts.", "Spread over crumb mixture.", "Top with chocolate chips.", "Bake 20 minutes or until set. Cool.", "Store, covered, at room temperature."]
["graham cracker crumbs", "cocoa", "sugar", "butter", "milk", "flour", "egg", "vanilla", "baking powder", "walnuts", "semi-sweet chocolate chips"]