At its core, red velvet is just chocolate cake with some makeup on. But in their new cookbook, the masterminds at San Francisco's Dandelion Chocolate use beet purée to add a "vegetal sweetness" (and a ruby-red hue) to the dessert. Not only will you get a vibrant cake fit for a crowd, but you'll also learn some techniques along the way: like making a dry caramel for the silky chocolate ganache.
Red Velvet Beet Cake
Excerpted from Dandelion Chocolate: From Bean to Bar to S'more, by Todd Masonis, Greg D'Alesandre, Lisa Vega and Molly Gore. Reprinted with permission from Clarkson Potter. All rights reserved.
Yield: One 8-inch 4-layer cake
Prep Time: 1 hour, plus cooling and resting time
Cook Time: 1 hour and 40 minutes
Total Time: 2 hours and 40 minutes, plus cooling and resting time
672 grams / 1½ pounds medium red beets
Butter or nonstick cooking spray, for the pan
5 large eggs at room temperature
2¾ cups / 570 grams / 20 ounces sugar
½ teaspoon / 2 grams kosher salt
2¼ cups / 226 grams / 8 ounces cake flour, sifted
5 tablespoons / 36 grams / 1¼ ounces finely ground 70% chocolate (use a spice grinder)
Chocolate Caramel Ganache
2¾ cups / 412 grams / 14 ounces chopped 70% chocolate
¾ cup / 150 grams / 5½ ounces sugar
2 cups / 450 grams / 16 ounces heavy cream
1. Make the Cake: Prepare the beets: Preheat the oven to 350°F (176.7°C). Wrap each beet in foil, and roast the beets for about 1 hour, until a knife pokes easily through the entire flesh. Allow the beets to cool in the foil, and then carefully peel each beet, discarding the skins. In a blender, puree the cooked beets on high speed with 3 tablespoons water until very smooth, a minute or two. Measure out 2 cups plus 2 tablespoons (480 grams/17 ounces) of the puree, and set it aside. (Reserve the remaining puree for another use.)
2. Butter or spray two 8-inch round cake pans, line them with parchment, and grease again. In the bowl of a stand mixer fitted with the whisk attachment, whisk the eggs, sugar, and salt on high speed until the mixture becomes pale in color and falls back on itself in ribbons when the whisk is removed, 4 to 6 minutes. Fold in the beet puree until the batter is streaked with color but not completely incorporated. This will prevent the beaten eggs from deflating too much as you mix the batter.
3. Sift together the cake flour and finely ground chocolate, then fold them into the batter until just combined. Divide the mixture evenly between the prepared cake pans. Bake the cakes for 25 to 30 minutes, until a cake tester inserted in the center comes out clean. Allow the cakes to cool completely on a wire rack, and refrigerate for 2 to 3 hours. Slice the cakes in half horizontally (using a serrated knife) to make 4 cake rounds.
4. Make the Chocolate Caramel Ganache: Place the chocolate in a large bowl and set aside.
5. Heat the sugar over medium-low heat in a dry heavy-duty saucepan. Watch it carefully—the sugar on the bottom will begin to melt. When you see the edges begin to brown, use a heatproof spatula to drag the sugar toward the center to prevent any burning, and continue to stir occasionally until the sugar is completely melted and has turned an amber color.
6. Remove the pan from the heat and immediately start pouring the cream into the caramel in a small, steady stream while whisking constantly. The caramel will bubble violently and may even seize up slightly, and that's okay. Continue to whisk, and put the pan back on high heat. As you bring the caramel liquid to a boil, any seized sugar chunks that may remain should dissolve. Once the liquid reaches a rolling boil, immediately pour it over the chocolate. Let the hot cream sit undisturbed on top of the chocolate for 30 seconds. Then use a whisk to stir slowly at first and then more vigorously as the chocolate and cream combine and the mixture thickens. The ganache should appear shiny and thick, but still be liquid enough to pour. Allow the ganache to full cool and thicken before assembling the cake.
7. Using a large offset spatula, spread a thin layer of ganache evenly on top of each cake layer, and layer one on top of another to create a 4-layer cake. Before cutting it, allow the cake to set in the refrigerator, uncovered, for about an hour. The cake will keep in an airtight container at room temperature for several days, or in the refrigerator for up to 1 week.
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