MIXTURE 1:
1/2 lb. butter
1 c. sugar
2 c. flour
1 tsp. baking powder
1 tsp. baking soda
1 tbsp. vanilla
1 c. sour cream

Cream butter and sugar. Add eggs and vanilla, then add dry ingredients and sour cream alternately.

MIXTURE 2:
1 c. chopped walnuts
1 tsp. cinnamon
1 c. brown sugar

Add 1/2 of mixture 2 to mixture 1. Pour in greased and floured lasagna pan.

MIXTURE 3:
1 lg. bag chocolate chips
Milk (about 4 tbsp.)

In double boiler melt chocolate; add milk to soften.

Marbelize cake with 1/2 melted chocolate. Top with remainder of brown sugar mixture. Dribble chocolate on top.

Bake at 300 degrees about 45 minutes. Slice while warm.