Waffles
["2 c. flour", "4 tsp. baking powder", "1/4 tsp. salt", "1 Tbsp. sugar", "2 c. milk", "4 egg yolks", "1/2 c. butter, melted", "4 egg whites"]
["Sift flour, baking powder, salt and sugar together.", "Beat egg yolks and mix with milk.", "Beat until smooth.", "Stir in melted butter.", "Beat egg whites until stiff; fold into mixture.", "Pour onto hot waffle griddle."]
["flour", "baking powder", "salt", "sugar", "milk", "egg yolks", "butter", "egg whites"]