Jelly Roll - cooking recipe

Ingredients

4 egg yolks
1/4 c. sugar
1/2 tsp. vanilla
4 egg whites
1/2 c. sugar
2/3 c. sifted cake flour
1 tsp. baking powder
1/4 tsp. salt

Preparation

Beat egg yolks until thick and lemon colored; gradually beat in 1/4 cup sugar.
Add vanilla.
Beat egg whites until soft peaks form; gradually add 1/2 cup sugar and beat until soft peaks form. Fold yolks into whites.
Sift together flour, baking powder and salt; fold into egg mixture.