1/3 c. shortening, melted
1 c. sugar
2 eggs
1/2 c. flour
1/2 tsp. baking powder
1/2 tsp. salt
1 c. chopped nuts
1 tsp. vanilla
1 1/2 squares baking chocolate, melted

Melt shortening; add sugar and eggs and mix well. Add flour, baking powder, salt and mix well. Add nuts and vanilla and mix well. Melt baking chocolate. Divide batter and add chocolate to half. Swirl together in an 8-inch square pan which is well greased. Bake at 375 degrees for 20-25 minutes.