Chocolate Cream Roll
["3/4 c. sifted plain flour", "1/4 c. cocoa", "1 tsp. baking powder", "1/4 tsp. salt", "3 large eggs, separated", "1 c. sugar", "5 Tbsp. water", "1 tsp. vanilla"]
["Sift together well the flour, cocoa, baking powder and salt. Beat egg yolks until light in medium bowl.", "Gradually add 3/4 cup sugar, beating until thick and creamy.", "Beat in water and vanilla. Beat egg whites until frothy.", "Gradually beat in the remaining sugar and beat until stiff.", "Fold egg whites into the egg yolk mixture.", "Fold in dry ingredients.", "Pour into a 9 x 13 1/2-inch shallow (jelly roll) pan that has been lined with wax paper and floured.", "Bake at 350\u00b0 for about 20 minutes.", "Quickly invert the cake onto a towel which is dusted with powdered sugar.", "Cut off crisp edges and remove paper.", "Roll up cake in towel and cool well."]
["flour", "cocoa", "baking powder", "salt", "eggs", "sugar", "water", "vanilla"]