Grandmother'S Jelly Roll - cooking recipe

Ingredients

3 eggs, beaten
1 c. sugar
1 c. flour
2 tsp. baking powder
flavoring (vanilla or ???)

Preparation

Mix, bake in shallow cookie sheet, spread with jelly or jam; roll up in a towel or wax paper.
Slice when warm or cool.
No oven temp given in this 1948 recipe.
Suggest 350\u00b0 for 10 to 15 minutes.
Yummy!