Mom'S Jelly Roll - cooking recipe

Ingredients

3 eggs, beaten separately
1 c. sugar
1 1/2 c. flour
2 level tsp. baking powder
1/2 c. warm water
1 tsp. vanilla

Preparation

Sift flour once, then measure.
Add baking powder and sift three times.
Beat egg whites stiff; fold in sugar and beaten egg yolks.
Add water and vanilla, then mix in flour lightly.
Line a jelly roll pan or shallow pan, 15 1/2 x 10 1/2-inch, with aluminum foil, then grease with shortening.
Bake in medium oven at 350\u00b0 for about 25 minutes.
Generously sprinkle powdered sugar on a dry towel a little larger than the cake.
Turn out the cake on towel, and while hot carefully roll cake and towel from narrow end.
Let cool on wire rack about 30 minutes, then unroll cake and spread jelly on the cake.
Roll up again without the towel.