Chocolate Upside-Down Cake
["3/4 c. granulated sugar", "3 Tbsp. cocoa", "1 1/2 Tbsp. butter or margarine", "3/4 c. sifted flour", "1 1/2 tsp. baking powder", "1/8 tsp. salt", "1/2 c. milk", "3/4 tsp. vanilla", "3/4 c. chopped black walnuts"]
["Cream sugar and butter.", "Sift cocoa, flour, baking powder and salt.", "Add to creamed mixture.", "Add milk and flavoring and beat for 1 1/2 minutes.", "Fold in nuts and pour in glass loaf pan.", "Pour sauce over batter and bake at 350\u00b0", "for 35 minutes."]
["sugar", "cocoa", "butter", "flour", "baking powder", "salt", "milk", "vanilla", "black walnuts"]