Buche de Noel

Name: Buche de Noel
Prep time: 1 h 45 min
Cook time: 12 min
Total time: 1 h 57 min
Cuisine: French
Ingredients: 4 large egg whites; 1 cup sugar; 24 tablespoons (3 sticks) unsalted butter, softened; 2 tablespoons instant espresso powder; 2 tablespoons rum or brandy; 1 Chocolate Genoise Sheet, recipe follows; 8 ounces almond paste; 2 cups confectioners' sugar; 3 to 5 tablespoons light corn syrup; Cocoa powder; Red and green liquid food coloring; Confectioners' sugar; 3 large eggs; 3 large egg yolks; Pinch salt; 3/4 cup sugar; 1/3 cup cake flour (spoon flour into dry-measure cup and level off); 1/3 cup cornstarch; 1/4 cup alkalized (Dutch process) cocoa