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1
Position the oven racks so that they are evenly spaced, with one rack in the center of the oven.
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2
Preheat the oven to convection bake at 350F.
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3
Line a 15 x 10-inch jelly roll pan with parchment paper and coat the parchment with nonstick spray.
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4
In a large bowl, beat the eggs with an electric mixer on the highest speed for about 3 minutes, until foamy.
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5
Add the granulated sugar, 1 tablespoon at a time, beating until very light and fluffy.
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6
By hand, stir in 1/4 cup cold water and the vanilla.
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7
Fold in the flour, baking powder, and salt, and blend well.
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8
Pour the batter into the prepared pan and smooth it out.
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9
Bake in the center of the oven for 9 to 12 minutes, until the top feels dry when touched.
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10
While the cake bakes, sprinkle the powdered sugar over a clean tea towel or a long strip of paper towel.
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11
Loosen the sides of the cake from the pan and invert it onto the towel.
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12
Remove the parchment paper and roll the cake up, starting at a narrow end, allowing the towel to be rolled up inside.
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13
Place it on a rack to cool.
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14
When cool, unroll the cake, spread it with your choice of filling, and roll it up again.
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15
Dust the roll with additional powdered sugar or spread with whipped cream.
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16
Cut into crosswise slices to serve.
