Vermont Sponge Cake
Cream of Tartar
Beat the egg yokes and cold water until light. Add sugar and vanilla, beat
for 7 minutes. Mix flour, salt, and baking powder. Add to the first
mixture. Beat egg whites and cream of tartar until stiff peaks form. Fold
into batter. Pour in a 9-inch tube angel food pan or bundt pan. Bake in a
preheated 325F oven for 50 minutes.
Source: "The Yankee Kitchen" 02-16-93 (#5) [Alberta]