Crumb Cake

• 1 cup butter
• 1 cup sugar
• grated rind of 1 lemon or 1 teaspoon vanilla
• 4 eggs, unbeaten,li>2 cups flour
• 2 teaspoons baking powder

Preheat oven to 350°F., a moderate oven. Cream butter and sugar, add lemon rind or vanilla and the eggs, one at a time (reserving 1 egg white.) Beat well, then add flour and baking powder mixed. Stir well, pour into buttered oblong shallow pan, 8"x12". Spread with the reserve egg white, cover with streussel and bake 30 minutes until brown.