Polish Cheese Cake
["2 oz. melted butter", "1/2 tsp. baking powder", "1 egg", "1 c. flour", "1/4 c. sugar"]
["Melt butter; blend in sugar and remaining ingredients.", "Press into shape in an 8-inch square Pyrex dish that had been well greased.", "Refrigerate half hour or longer."]
["butter", "baking powder", "egg", "flour", "sugar"]