Congo Squares
["1 1/3 sticks butter", "1 pkg. brown sugar", "3 eggs, beaten", "2 1/2 c. flour (self-rising)", "1 pkg. chocolate bits", "1 tsp. vanilla flavoring"]
["Cream butter and sugar slowly over heat. Add eggs, flour, chocolate bits and flavoring. When well mixed, pour into two 9 x 9-inch baking pans. Bake at 350\u00b0 for 35 to 40 minutes."]
["butter", "brown sugar", "eggs", "flour", "chocolate bits", "vanilla flavoring"]