Ingredients:

Streusel filling:
½ cup brown sugar
2 tablespoons flour
2 teaspoons cinnamon
2 tablespoons melted butter
½ cup chopped nuts

cake:
1½ cup flour
3 teaspoons baking powder
¼ teaspoon salt
¾ cup sugar
¼ cup shortening
1 egg
½ cup milk
1 teaspoon vanilla

 Directions:

Streusel filling: Mix sugar, flour and cinnamon together, then blend in the melted butter and stir in the chopped nuts. Mix well and use as described below.
Cake:Sift flour once before measuring. Then sift flour, baking powder, salt and sugar together. Cut in shortening with two knives or a pastry blender (or rub it in with the fingers) until mixture is like fine cornmeal. Blend in well beaten egg, mixed with milk. Then blend in vanilla, and beat just enough to mix well. Pour half the batter into a well greased and floured 6" x 10" pan or 8" square pan. Sprinkle with half the streusel mixture. Add remaining batter and sprinkle remaining streusel mixture over top. Now bake 25 to 30 minutes in a quick moderate oven, 375 degrees.