Blueberry Pudding
["1/2 c. butter", "3/4 c. sugar", "4 egg whites", "1/2 c. milk", "2 c. flour", "2 tsp. baking powder", "1 c. blueberries", "1/4 tsp. salt"]
["Cream butter, salt and sugar; add the egg whites one at a time. When all added, mix in the milk and the flour sifted with the baking powder.", "Add the berries and pour into a buttered mold, cover and steam for two hours.", "Serve with a hard sauce or lemon sauce."]
["butter", "sugar", "egg whites", "milk", "flour", "baking powder", "blueberries", "salt"]