is this it?
Betty Crocker Cookbook:
Hot Fudge Sundae Cake
1 cup all purpose flour
3/4 cup sugar
2 tbls cocoa
2 tsp baking powder
1/4 tsp salt
1/2 cup milk
2 tbls vegetable oil
1 tsp vanilla
1 cup chopped nuts (optional
1 cup packed brown sugar
1/4 cup cocoa
1 3/4 cup hottest tap water
Heat oven to 350. Mix flour, granulated sugar, 2 tbls cocoa, baking powder and salt in ungreased 9 inch square pan. Mix in milk, oil and vanilla with fork until smooth. Stir in nuts if desired. Spread in pan, sprinkle with brown sugar and 1/4 cup of cocoa, pour hot water over batter.
Bake 40 minutes. While warm spoon into dessert dishes and top with ice cream. Spoon sauce from pan onto each serving.
9 servings