Jelly Roll Yellow Sponge Cake - cooking recipe

Ingredients

5 medium eggs
1/2 tsp. cream of tartar
3/4 tsp. vanilla
pinch of salt
1/2 c. sifted granulated sugar
3/4 c. sifted cake flour

Preparation

Preheat oven to 400\u00b0.
Grease a jelly roll pan with 1 tablespoon shortening.
Sprinkle well with cake flour, shaking off loose flour.
Separate eggs; beat yolks 1 minute.
Add pinch of salt to egg whites and beat until foamy.
Add cream of tartar and continue beating whites until they cling to bottom and sides of bowl, then beat 1 minute longer.
Fold beaten egg yolks into egg whites gently but quickly.
Fold in sugar, flour and vanilla.
Do not overmix.