PROFESSOR'S CHOCOLATE CAKE
SOURCE: BEATRICE OJAKANGAS. SCANDINAVIAN FEASTS: CELEBRATING TRADITIONS THROUGHOUT THE YEAR.
Ingredients
6 ounces/170 grams semisweet chocolate OR bittersweet chocolate, preferably at least 50% cacao
6 ounces/170 grams unsalted butter, softened
3/4 cup/150 grams granulated sugar
3 large egg whites
3 large egg yolks
3/4 cup/50 grams sifted cake flour OR all-purpose flour
3/4 cup/100 grams walnuts, pecans, OR skinned hazelnuts, finely chopped
1 tablespoon/15 mL instant espresso coffee
Confectioner’s sugar, for garnish
Specific Equipment
2 medium-sized mixing bowls
Small saucepan
Spatula
Wire whisk OR stand mixer or hand mixer equipped with a whisk attachment
9-inch/23-cm cake pan, preferably springform cake pans, greased with butter and dusted with flour
Cooling rack
Sifter OR fine-mesh strainer
Serves 8 to 12
Instructions
1. Preheat oven to 350°F/175°C.
2. Melt the chocolate, butter, and sugar in a medium-sized mixing bowl set over a small saucepan of simmering water. Stir altogether with a spatula until the mixture is smooth and well-blended. Remove the bowl from heat and set aside to cool.
3. Beat the egg whites in another mixing bowl with a wire whisk, stand mixer, or hand mixer until peaks are stiff and glossy.
4. Beat the egg yolks into the chocolate mixture. Stir in the flour, the walnuts, pecans, or hazelnuts and the instant coffee until well-blended.
5. Stir a third of the beaten egg whites with a spatula to lighten the chocolate mixture. Fold in the rest of egg whites until completely incorporated into the batter.
6. Pour the batter into cake pan and bake for 35 to 40 minutes or until the cake has risen double in volume. Remove from oven and let the cake pans cool on a wire rack to allow the cake to deflate.
7. Sift over the confectioner’s sugar and serve the cake by cutting into wedges.