Streuselkuchen (Crumb Cake)

Topping
1/4 cup sugar
1/4 cup brown sugar
2  tsp cinnamon
1 cup flour; unbleached, unsifted
1/2 cup butter

Cake
2 1/4 cups flour; unbleached, unsifted
1/4 cup sugar
1/4 tsp salt
1  package yeast; dry
3/4 cup milk
1/2 cup butter
1 egg; large

For topping, mix sugars, cinnamon and flour. Cut in butter until
mixture is crumbly. To make cake, mix 1 cup flour, sugar, salt
and yeast in a large bowl. Place milk and butter in a sauce pan and
heat until very warm (120 to 130 degrees F). Gradually add to dry
ingredients; beat 2 minutes.  Beat in egg and 1 cup flour. Beat on
high speed for 2 minutes.  Stir in enough flour to make a soft but
stiff batter.  Spread batter into a well-greased 9-inch square cake
pan.  Sprinkle with topping.  Let rise in a warm place until double
in bulk, about 1 1/2 hours.  Bake at 350 degrees F. about 45 minutes
or until done.
Makes 1 9-inch square cake.