A delicious jelly-filled cake roll and an old-fashioned favorite! I can remember my mama making these when I was little.
4 egg yolks (reserve whites)
3/4 cup sugar - divided 1/2 teaspoon vanilla extract 4 egg whites 3/4 cup cake flour (see substitution) 1 teaspoon baking powder 1/4 teaspoon salt 1/4 cup confectioner's (powdered) sugar jam or jelly of your choice
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