Bittersweet Chocolate Roulade or Yule Log

Name: Bittersweet Chocolate Roulade or Yule Log
Yield: Serves 8 to 10
Ingredients: 3/4 cup, heavy cream; 2 tablespoons, unsalted butter; 6 ounces (170 grams), semisweet chocolate or bittersweet chocolate (high-quality), chopped; 1 tablespoon, Cognac; 1/2 cup, heavy cream; 2 teaspoons, espresso powder; 6 tablespoons, confectioners' sugar (1 1/2 ounces/43 grams); 16 ounces (454 grams), mascarpone cheese (about 2 cups); 1/4 cup, unbleached all-purpose flour (about 1 1/4 ounces/35 grams), plus more for dusting baking sheet; 6 ounces (170 grams), bittersweet chocolate or semisweet chocolate, chopped fine; 2 tablespoons, cold unsalted butter, cut into two pieces; 2 tablespoons, cold water; 1/4 cup, cocoa (3/4 ounce/21 grams), Dutch-processed, sifted, plus more for unmolding and garnish; 1/8 teaspoon, table salt; 6 , large eggs, separated, room temperature; 1/3 cup, granulated sugar (2 1/3 ounces/66 grams); 1 teaspoon, vanilla extract; 1/8 teaspoon, cream of tartar

Desserts or Baked Goods
Chocolate
Cakes
Holiday

Appears in Cook's Illustrated November/December 2000, America's Test Kitchen TV

We created a cake that is easy to roll but still moist, tender, and full of chocolate flavor. With the cream, ganache, and mushrooms, this cake also makes the ultimate yule log cake.

SERVES 8 to 10

TIME 2¾ hours, plus 1 hour cooling

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