- 1. Combine butter, water and cocoa in 3-quart saucepan. Bring to boiling and boil 5 min. Remove from heat.
- 2. One at a time beat in sugar, flour, baking soda, salt and vanilla. Quickly beat in sour cream, then eggs.
- 3. Pour into well-greased 10-by-15-by-1-inch jelly roll pan. Bake at 375 degrees F for 20 min.
- 4. Meanwhile, make frosting. Rinse out same saucepan. Combine butter, cocoa and milk. Bring to boiling. Remove from heat. Vigoriously stir in powdered sugar and vanilla. Blend until smooth.
- 5. After cake comes from oven, immediately spread with frosting and sprinkle with nuts, if used. cool. Cut into squares of desired size.
Chocolate Frosting:
1/2 cup butter or margarine
1/4 cup cocoa
1 Tbsp. milk
1 box (16 oz.) powdered sugar (sift if lumpy)
1 tsp. vanilla extract
Tips: Use a 3-quart saucepan for preparing cake to prevent a boil over. All mixing is done in this one utensil. Cake can also be baked in 2 7-by-11-inch pans. To freeze, pack squares in airtight container with waxed paper between layers. Thaw completely to serve.
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