1 c. rolled oats
1/2 c. flour
1/2 c. brown sugar
1/4 tsp. baking soda
6 tbsp. melted butter

3/4 c. sugar
1/4 c. melted butter
1 oz. sq. melted unsweetened chocolate
1 egg
2/3 c. flour
1/4 tsp. baking powder
1/4 c. milk
1/2 tsp. vanilla
1/2 c. chopped walnuts

Bottom Layer: Stir first 4 ingredients together and 1/4 teaspoon salt. Stir in 6 tablespoons melted butter. Pat into 11 x 7 1/2 inch pan. Bake 10 minutes at 350 degrees.

Middle Layer: Combine sugar, 1/4 cup butter and chocolate. Add egg. Beat well. Stir together 2/3 cup flour, baking powder and 1/4 teaspoon salt. Add to chocolate mixture alternately with a mixture of milk and vanilla. Mix after each addition. Fold in nuts. Spread batter over baked layer. Bake 25 minutes at 350 degrees. Cool. Frost.

Melt 1 (1 ounce) square unsweetened chocolate and 2 tablespoons butter over low heat, stir constantly. Remove form heat. Stir in 1/2 cup sifted powdered sugar and 1 teaspoon vanilla. Blend in about 2 tablespoons hot water. To make almost pourable consistency.