1. Preheat oven to 350 degrees F & lightly butter a 15"x8" baking pan or sheet. Line baking sheet with parchment paper or wax paper, then butter that well & dust lightly with 2 tablespoons of powdered sugar. 2. In a mixing bowl, beat egg yolks & 1/4 cup granulated sugar until thick & smooth. 3. Stir in flour, cocoa & vanilla extract, blending well. 4. In another bowl, whip egg whites until stiff, but not dry, then fold them into the yolk/flour mixture. 5. Pour batter into prepared baking sheet & spread out evenly. 6. Bake 15 minutes, then cool for 5 minutes before turning onto a cloth to cool. 7. After another 10 minutes peel off the paper. 8. Combine whipped cream, rum & superfine sugar, & adjust to taste. 9. Spread this cream mixture over the cake & then roll the cake like a jellyroll, starting with the long edge. 10. Sprinkle with remaining powdered sugar, before slicing into 3-inch long slices & serving. ---------------------------------------------------------------------------
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Ingredients
