This great recipe is based on one from Moosewood Restaurant Book of Desserts. The cake doesn’t taste at all like beets once it’s baked because of all the cocoa powder in it, but the beets add a great depth of flavor and moistness—not to mention vitamins!!
If you have an overabundance of beets like I do (they are very often in our CSA boxes), make a double or triple batch of the cake in small loaf pans, and then wrap them well in plastic wrap and freeze them. Because of the beets, the cake stays very nice and moist, even after freezing. You can also roast and peel your beets ahead of time and freeze them whole, in preparation for baking this cake later.
If you want to make a Mexican chocolate cake, just add 1 ½ teaspoons of cinnamon to the dry ingredients for an Ibarra chocolate flavor.
14 ounces roasted, peeled beets
½ cup water
3 eggs, or 2 eggs + 2 egg whites
1 ½ cups sugar
¼ to ½ cup oil (depending on how low-fat you want to go)
1 teaspoon vanilla
½ teaspoon salt
1 ½ cups flour
¾ cup unsweetened cocoa powder
1 ½ teaspoons baking soda
optional: ½ to 1 cup semisweet chocolate chips
1. Roast and peel the beets:
a. Put whole, unpeeled beets in a baking dish or dutch oven and put ¼” of water in the dish. Cover tightly with foil or the lid of the dutch oven and bake them at 400 degrees (or whatever temperature you happen to be baking something else) until tender when stabbed with a paring knife. Usually they take at least an hour, but young beets might be quicker, depending on their size.
b. Remove from the oven and let them cool. When the beets are cool enough to handle, slip their skins off.
2. Grease and flour the pan(s): either two 8” round baking pans (for a small layer cake) or one 10” pan, or a couple of small loaf pans, or line a muffin tin with cupcake papers. Preheat oven to 350 degrees.
3. In a blender, puree the beets and ½ cup water. Set aside.
4. In a large bowl, beat the eggs well. Thoroughly whisk in the sugar, oil, vanilla, salt, and beet puree until very smooth. In a separate bowl, sift together the flour, cocoa, and baking soda. Add the dry ingredients (except the chocolate chips) to the wet ingredients a little at a time, whisking until smooth. Then stir in the chocolate chips, if using.
5. Pour the batter into prepared baking pan(s) and bake until a toothpick inserted into center comes out clean. Check the cupcakes after 15 to 18 minutes. The two cakes/loaves might take as little as 30 minutes, and the one 10” cake will probably take at least 45 minutes. Cool for 5 minutes in the pan, then invert onto a cooling rack. Cool completely before frosting with your choice of frosting, or just dust with powdered sugar. If you add the chocolate chips, you don’t really need frosting at all.