Streusel Recipe: Cream 1 cup sugar and butter thoroughly. Add one egg at a time and beat well after each addition. Add sour cream gradually. Sift flour with baking powder, soda and salt. Add extract flavoring. Using 2 (8-inch) cake pans or 1 (13 x 10 x 2-inch) greased pan, spread batter to 1 inch thick on bottom (not too much). Sprinkle liberally with 1/2 streusel topping. Put rest of batter over top of streusel. Dab rest of batter over top of streusel layer. Use back of spoon. Sprinkle rest of streusel. Bake at 375° for 30 minutes. Watch. May bake at 350° for 40 minutes.

Streusel Topping: Mix together ground nuts, 1/2 cup sugar and cinnamon.