2 c. plus 1 tbsp. flour
1/2 c. brown sugar, packed
1/2 c. chopped nuts
2 c. miniature chocolate chips
1/2 c. plus 2 tbsp. softened butter
1 c. sugar
1 tsp. vanilla
3 eggs
1 tsp. baking powder
1 tsp. baking soda
1/2 tsp. salt
1 c. sour cream

TOPPING: Combine 1 tablespoon flour, 1/2 cup brown sugar, and 2 tablespoons softened butter. Mix well in small bowl.

CAKE: Combine 1/2 cup softened butter, 1 cup sugar, and 1 teaspoon vanilla. Mix well, then add 3 eggs, one at a time, beating well after each egg. Gradually add 2 cups flour with 1 teaspoon baking powder, 1 teaspoon baking soda, and 1/2 teaspoon salt. Mix well and add 1 cup sour cream.

Mix and then fold in 1 1/2 cups miniature chocolate chips. Spread into greased 9x13 inch baking pan. Sprinkle topping evenly over batter. Bake at 350 degrees about 40-45 minutes.