2 c. all-purpose flour
2 c. firmly packed brown sugar
1/2 c. butter, softened
1 c. chopped nuts
1 tsp. baking soda
2 tsp. cinnamon
1/2 tsp. salt
1 c. sour cream
1 tsp. vanilla
1 egg
2 c. peeled, finely chopped apples

In a large bowl combine the first three ingredients. Blend at slow speed with mixer until crumbly. Stir in nuts. Press 2 3/4 cups crumb mixture into an ungreased 13x9 inch pan.

To the remaining crumb mixture add cinnamon, soda, salt, sour cream, vanilla and egg. Blend well, stir in apples. Spoon this evenly over the base in pan and bake at 350 degrees for 25-35 minutes. Cut in squares and serve with whipped cream if desired.