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1
Line a 15 x 10-inch jelly roll pan with parchment or waxed paper and butter bottom and sides of the pan. Dust with flour. Preheat oven to 375u00b0F.
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2
In a large bowl of an electric mixer, beat the eggs until foamy. Add the sugar GRADUALLY and continue beating until light and lemon colored, about 5 minutes at high speed.
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3
SIFT the flour and baking powder together over the mixture and carefully fold in using a rubber spatula.
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4
Turn mixture into the prepared pan and spread evenly to the edges and corners. Bake for 8 to 10 minutes until the top springs back when touched.
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5
While cake is baking tear off a doubled length of paper toweling, folding it to about 18 inches in length. Generously dust the toweling with powdered sugar.
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6
When cake is baked, loosen the edges and invert immediately onto the sugar dusted towel. Peel off the parchment or waxed paper and roll up the cake, starting at a narrow end, rolling the towel into the cake. Allow to cool completely.
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7
To prepare the filling, combine the ricotta and whipping cream in a bowl and beat at high speed until rather stiffly whipped. Blend in the powdered sugar and vanilla.
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8
Carefully unroll the cake. Spread with the creamy mixture and berries. Roll up again. Place on serving plate and chill, covered, until ready to serve. 6 to 8 servings.
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9
The Great Scandinavian Baking Book B. Ojakangas.