Sponge Cake
["4 eggs", "2 level c. flour, sifted 4 times", "2 level tsp. baking powder", "1 tsp. vanilla", "2 c. granulated sugar", "pinch of salt", "1 c. hot milk"]
["Beat eggs several minutes.", "Add sugar.", "Sift flour 4 times. Add baking powder and salt with last sift.", "Add vanilla.", "Fold in hot milk.", "Mix into batter.", "Bake in a cold oven, then at 350\u00b0 until done."]
["eggs", "flour", "level tsp.", "vanilla", "sugar", "salt", "hot milk"]