Marbled Coffee Cake
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Credit: Landon Nordeman
17 tbsp. unsalted butter, softened
1 3⁄4 cups flour
2 oz. semisweet chocolate, preferably 54%,
roughly chopped
2 tbsp. dark rum
3 tbsp. cornstarch
1⁄2 tsp. salt
1⁄2 cup confectioners' sugar,
plus more for dusting
2 tbsp. lemon zest
1 tbsp. vanilla extract
5 eggs, separated
1 cup sugar
1. Heat oven to 325°. Grease a dark metal 1 1⁄2-qt. gugelhupf mold with 1 tbsp. butter. Add 1⁄4 cup flour and shake to evenly coat the inside of mold. Invert and tap out excess flour; set mold aside. Set a medium bowl over a 1-qt. saucepan of simmering water. Add chocolate; melt. Stir in rum and set aside to let cool slightly.
2. Sift together remaining flour, cornstarch, and salt; set aside. In a bowl, beat remaining butter, confectioners' sugar, lemon zest, and vanilla using a handheld mixer on medium speed until mixture is pale and fluffy, about 2 minutes. Add egg yolks one at a time, beating after each addition. Add reserved flour mixture to butter mixture in 3 additions, beating to combine after each addition. Set batter aside.
3. In a large nonreactive bowl, beat egg whites with handheld mixer on high speed until frothy. Sprinkle in sugar and beat to form stiff, glossy peaks. Whisk one-third of egg whites into reserved cake batter to lighten it. Using a rubber spatula, fold in remaining egg whites to make an airy cake batter.
4. Fold one-third of the cake batter into the reserved chocolate mixture to make a chocolate-flavored batter. Spoon half of the remaining cake batter into the buttered mold. Spoon all the chocolate batter into mold and top with remaining cake batter. Using a butter knife, swirl the chocolate batter into the cake batter to create a marbled effect. Smooth the top. Bake until a toothpick inserted in the cake comes out clean, about 55 minutes. Transfer cake to a rack; let cool. Unmold cake and dust with confectioners' sugar.
SERVES 10













Do you actually test the recipes before you publish them or do you just accept on faith that they are correct.
Great cake! Great recipe! It's a keeper!
coffee cake once and it disappeared so
fast that I had to make it again. I'm frankly puzzled that anyone would have a problem with the recipe. Thanks for
bringing Vienna into my kitchen. It's one of my favorite cities in the world.
Jim