Cocoa Bars(Easy)  
["1/4 c. butter or margarine", "1 c. sugar", "1 tsp. vanilla", "2 eggs", "1/4 c. milk", "1 c. sifted enriched flour", "2 Tbsp. cocoa", "1/4 tsp. salt", "1/2 c. chopped walnuts"]
["Cream butter to soften.", "Gradually add sugar and vanilla; cream well.", "Beat in eggs, one at a time.", "Stir in milk.", "Sift together dry ingredients; stir into creamed mixture.", "Add nuts. Spread in a greased 9 x 9 x 2-inch pan.", "Bake at 375\u00b0 for 20 minutes or until done.", "At once, frost cake with Cocoa Frosting."]
["butter", "sugar", "vanilla", "eggs", "milk", "flour", "cocoa", "salt", "walnuts"]