Overnight Coffee Cake
["3/4 c. butter or margarine, softened", "1 c. sugar", "2 eggs", "1 (8 oz.) carton commercial sour cream", "2 c. all-purpose flour", "1 tsp. baking powder", "1 tsp. soda", "1/2 tsp. salt", "1 tsp. ground nutmeg", "3/4 c. firmly packed brown sugar", "1/2 c. chopped walnuts", "1 tsp. cinnamon"]
["Combine butter and sugar; cream until light and fluffy.", "Add eggs and sour cream, mixing well.", "Combine next 5 ingredients and add to batter; mix well.", "Pour batter into a greased and floured 13 x 9 x 2-inch baking pan."]
["butter", "sugar", "eggs", "sour cream", "flour", "baking powder", "soda", "salt", "ground nutmeg", "brown sugar", "walnuts", "cinnamon"]