Cheese Puffs
["1 (1 lb.) loaf unsliced sandwich bread, trim crust and cut into 1-inch cubes", "2 (3 oz.) pkg. cream cheese", "1 (8 oz.) pkg. grated sharp Cheddar cheese", "1 c. margarine", "4 egg whites, stiffly beaten"]
["Melt cream cheese, Cheddar and margarine until smooth.", "Fold small amount of hot cheese into egg whites.", "Fold into remaining cheese mixture.", "Spear cube of bread and dip, coating all sides. Place 1 inch apart on lightly greased baking sheet.", "Cover and refrigerate overnight or freeze (can freeze 2 months).", "Put in bag after frozen.", "Uncover.", "Bake at 350\u00b0 for 10 minutes or until golden brown."]
["bread", "cream cheese", "grated sharp", "margarine", "egg whites"]