Poppy Seed Cake
["1/2 c. poppy seed", "1 c. milk", "3/4 c. butter", "1 1/2 c. sugar", "2 c. cake flour", "2 tsp. baking powder", "4 egg whites, beaten well", "1 tsp. vanilla"]
["Soak poppy seed in milk for 2 hours.", "Cream butter and add sugar, then add milk and poppy seed.", "Add dry ingredients and then fold in egg whites.", "Bake in greased and floured 9 x 13-inch cake pan or 2 (9-inch) round cake pans.", "Bake 25 minutes at 350\u00b0. Frost when cool."]
["poppy seed", "milk", "butter", "sugar", "cake flour", "baking powder", "egg whites", "vanilla"]