(from Ilana’s family recipe)
Cake:
- 6 eggs, separated and cooled to room temperature
- 3/4 cup sugar
- 6 oz. semi-sweet chocolate, squares
- 3 tablespoons strong cold coffee
- pinch salt
- cocoa
Filling:
- 1 cup whipping cream
- 2 tablespoons confectioner’s sugar
- 1/2 teaspoon vanilla extract
- Preheat oven to 350.
- Melt chocolate and coffee together, and let cool. (Use a double boiler, or 30 seconds at a time in the microwave).
- Beat the yolks until they are creamy and light in color.
- Beat in the sugar until the mixture is thick and light.
- Add the chocolate and mix.
- Set aside.
- In a separate bowl, add the salt to the egg whites and beat until stiff.
- Fold the whites into the chocolate mixture. First add a small scoop and mix, and then fold in the rest.
- Pour the mixture into a greased 10 × 15 jelly roll pan. (Grease the pan, line with waxed paper, and grease the waxed paper.)
- Bake at 350 for 15 minutes.
- Let cool on a rack for 1 hour, covered with a damp towel.
- Lay waxed paper on a table.
- Sift cocoa evenly all over the paper.
- Turn the cake onto the waxed paper on the table. Remove the wax paper from the top of the cake.
- In a bowl, beat the cream, sugar and vanilla until the mixture is stiff.
- Spread on the cake.
- Roll! From the short side, grab the wax paper and begin pulling it over itself to start the rolling. The cake may break at first, but then will start rolling smoothly.
- Keep rolling until the whole cake is rolled and the seam is face down.
- Refrigerate or freeze.