1/2 c. butter
2 c. sugar
2 eggs
2 1/2 c. flour
1 tsp. baking soda
1/8 tsp. salt
1 c. plain yogurt
1 c. chopped nuts

TOPPING:

3/4 c. brown sugar
1 c. flour
1 tsp. cinnamon
2 tbsp. butter

Cream butter and sugar together. Add eggs. Sift dry ingredients and add alternately with yogurt. Stir in nuts or save for topping. Pour batter into a greased 13 x 9 inch pan. Mix 3/4 cup brown sugar, 1 cup flour, 1 teaspoon cinnamon, 2 tablespoons butter. Put on top of batter (crumble). Bake at 325 degrees for approximately 45 minutes.