This is what I normally prepare for Christmas Day dessert, but this year I chose to make a Raspberry Bombe instead. As tasty as the bombe was, I have to say I missed the buche. The yule-log was missing from our yule.
So I took the opportunity to make it for a post-Hanukkah party this weekend. It doesn't have to be a holiday treat. It is sensational for any large, winter gathering, with shredded coconut strewn for snow and little meringue mushrooms sprouting up around the log.
It's not a project for the faint of heart, but if you're patient and follow the directions carefully, you can do it. If you can read, you can cook, I always tell friends who lament that they can't cook. Muster up your courage and go for it. Make sure you read the directions thoroughly before starting. If you really mess it up, you can throw it all in a glass bowl and call it a trifle. If you don't tell anyone it was supposed to be a yule log, they'll never know.
I'll never forget my first attempt at making a chocolate souffle, decades ago. It never rose to puffy heights, but my husband proclaimed the dessert "the best brownies I've ever eaten."
With a few small changes, this is adapted from a recipe for "bittersweet chocolate roulade" from an episode of "America's Test Kitchen."
This cake tastes best served at room temperature.
for the cake:
6 ounces bittersweet or semisweet chocolate, chopped fine
2 tablespoons unsalted butter, cut into two pieces
2 tablespoons cold water
1/4 cup sifted cocoa, plus 1 T. for unmolding
1/4 cup unbleached all-purpose flour, plus more for baking sheet
1/8 t. salt
6 large eggs, separated
1/3 c. sugar
1 t. vanilla extract
1/8 t. cream of tartar
1. Preheat oven to 400 degrees. Spray a 12 x 17 inch rimmed baking sheet with nonstick cooking spray, cover pan bottom with parchment paper and spray parchment with nonstick cooking spray. Dust surface with flour and tap out excess.
2. Bring some water to a simmer in a small saucepan over medium heat. Combine chocolate, butter and water in small heatproof bowl and cover tightly with plastic wrap. Set bowl over pan, reduce heat to medium low and heat until butter is almost completely melted and chocolate pieces are glossy and fully melted. Do not stir or let water boil under chocolate. Remove bowl from pan, unwrap and stir until smooth and glossy.
3. While chocolate is melting, sift 1/4 cup cocoa, flour and salt together into small bowl and set aside.
4. In bowl of standing mixer fitted with whisk attachment, beat whites and cream of tartar at medium speed until foamy, about 30 seconds. With mixer running, add about 1 t. sugar; continue beating until soft peaks form, about 40 seconds. Gradually add half of sugar and beat until whites are glossy and hold stiff peaks when whisk is lifted, about 1 minute longer. Do not over beat. If whites look dry and granular, they are over beaten. Remove whites into a large bowl.
5. Beat yolks at medium speed until just combined, and add half of remaining sugar. Continue to beat, scraping down sides of bowl as necessary until yolks are pale yellow and mixture falls in thick ribbons when whisk is lifted, about 8 minutes. Add vanilla and beat to combine, scraping down bowl once.
6. Stir chocolate mixture into yolks, a small amount at a time so you don't scramble the eggs. With a rubber spatula, stir one quarter of the whites into the chocolate mixture to lighten it. Fold remaining whites until almost no streaks remain. Sprinkle dry ingredients over top and fold in quickly but gently.
7. Pour batter into prepared pan, smoothing batter into pan corners. Bake until center of cake springs back when touched with finger, 8 to 10 minutes, rotating pan halfway through baking. Cool in pan on wire rack for 5 minutes.
8. While cake is cooling, lay clean kitchen towel over work surface and sift remaining tablespoon cocoa over towel. With hands, rub cocoa into towel. Run paring knife around perimeter of baking sheet to loosen cake. Invert cake onto paper towels and peel off parchment. This is tricky and it's entirely possible that the cake will crack when you're inverting it, or rolling it, as it did for me. Don't worry if this happens. It can be covered with frosting.
9. Roll cake, paper towels and all, into jelly roll shape. Cool for 15 minutes, then unroll cake and paper towels. Spread filling over surface of cake, almost to edges. Roll up cake gently but snugly around filling. Put cake seam-side down on top and place in refrigerator for an hour to harden the filling a bit. This will make it easier to frost.
10. Remove cake from refrigerator and trim ends at a diagonal. Spread ganache frosting on cake, including exposed edges. Take the edges that you trimmed off and attach to the top of the log as little stumps, using a long wooden skewer to help prevent them from sliding off. Spread more ganache on the little stumps reserving a teaspoonful for later. Use a fork to make wood-grain striations on the surface of the ganache before the icing has set. Refrigerate uncovered. Before serving, remove wooden skewers and patch the hole with a little dab of some frosting. Bring to room temperature before serving, for best flavor.
1/2 cup heavy cream
3 teaspoons instant espresso powder
1/2 cup sifted confectioner's sugar
16 ounces mascarpone cheese
1. Simmer cream in a small saucepan over high heat. Remove from heat and stir in espresso powder and powdered sugar. Cool.
2. With spatula, beat mascarpone in medium bowl until softened. Gently whisk in cooled cream mixture until combined.
3/4 cup heavy cream
2 T. unsalted butter
6 ounces bittersweet or semi-sweet chocolate, chopped
1 T. cognac
Microwave cream and butter in measuring cup on high until bubbling, about 1 1/2 minutes. Place chocolate in bowl of food processor fitted with steel blade. With machine running, gradually add hot cream and cognac through feed tube and process until smooth and thickened, about 3 minutes. Transfer ganache to medium bowl and let stand at room temperature for one hour, until spreadable.
2 egg whites
1/4 cup sugar
dash cream of tartar
Beat egg whites until frothy. Add cream of tartar and sugar, gradually, until mixture forms stiff peaks. Place into a plastic bag and trim off a bit at the corner. Or use a pastry bag. Pipe onto a parchment-lined cookie sheet, some in small cap shapes and some in long "stem" shapes. Dab the tops with water to smooth out any pointy tips. Bake at 200 degrees for 1 1/2 hours, then turn off the oven and leave in the oven another 1/2 hour. Let cool. Before serving cake, cut little holes in the bottom of a cap shaped piece and push a stem shaped piece into it. You can frost the bottom of the cap first if you like, but be aware that these will soften quickly once you frost them. Don't assemble the mushrooms until you are ready to serve the cake. When all the mushrooms are placed around the cake, dust the caps and the cake with more cocoa, for a "dirt" effect.
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