Streusel Kuchen

Streusel Kuchen

Ingredients:
1/2 cup mashed potato
1/2 cup potato water
1/2 cup butter and other shortening
1/2 cup sugar
3 1/2 cups flour
1 cup yeast dissolved in 1/2 cup lukewarm water
2 eggs, well beaten
1/2 cup sugar
1 1/2 cups flour
Topping: 1 cup flour, 1/2 cup sugar, 1 egg yolk (well beaten)

Directions:
Mix together the mashed potatoes, potato water, shortening, and sugar. Add to this about 3 1/2 cups flour and the dissolved yeast. Set this dough aside to rise in a warm place overnight. The next morning add the eggs, 1/2 cup sugar, and 1 1/2 cups flour. Let this mixture stand in a warm place until light. Then roll out pieces 6 by 8 by 1 inch thick and place in greased oblong pans. When cakes are ready to be put into the oven, brush the top of the cake with melted butter. Strew over the tops of the cakes the topping mixture, which should be rubbed through a coarse sieve. Bake at 400