Recipe by Chay Wike

Grain-Free Dark Chocolate Cake with Chocolate Sweet Potato Frosting

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Parve Parve
Easy Easy
8 Servings


- Tree nuts

The teenagers in my house and the surrounding area have approved this allergen-friendly chocolate cake, right down to its sweet, creamy frosting. The first time I made it, I didn’t tell them the frosting was made from vegetables. During the big reveal—after they’d devoured every last bite off the cake platter the way only a group of teens can do—my daughter, who generally hates sweet potatoes, was shocked to learn that the frosting was full of them. We had a good laugh. Sometimes you have to be stealthy when you’re introducing new food concepts to people who don’t have any allergies. Tell them what’s in it after they lick the plate.

In contrast to most cakes, I like this one best chilled.


Chocolate Sweet Potato Frosting

  • 2 large orange-fleshed sweet potatoes (such as Jewel or Garnet, about 2 pounds total)

  • 1/2 cup cacao powder

  • 3/4 cup Gefen Maple Syrup

  • 1/4 cup melted coconut oil

  • 1 tablespoon alcohol-free vanilla extract

  • pinch of kosher sea salt

Grain-Free Dark Chocolate Cake

  • 1/2 cup Tonnelli Avocado Oil, plus more for greasing the pan

  • 1/4 cup ground flaxseed or flaxseed meal

  • 2/3 cup hot water

  • 1 cup superfine blanched almond flour

  • 1/2 cup cassava flour

  • 1/2 cup coconut flour

  • 2 tablespoons tapioca flour, such as Gefen Tapioca Starch

  • 2/3 cup cacao powder

  • 2 teaspoons aluminum-free baking powder

  • 1 teaspoon baking soda

  • 1/2 teaspoon kosher sea salt

  • 1 cup Gefen Almond Milk

  • 1 cup Gefen Maple Syrup

  • 1 tablespoon alcohol-free vanilla extract


Prepare the Chocolate Sweet Potato Frosting


Preheat the oven to 450 degrees Fahrenheit. Make the frosting first.


Prick the sweet potatoes all over with a fork and place them on a small baking sheet lined with Gefen Parchment Paper. Roast for about 60 minutes, or until completely tender in the center.


Remove the sweet potatoes from the oven and set aside until cool enough to handle, about 10 minutes. Cut the skins open and scoop out the flesh. Measure two packed cups of flesh and transfer to the bowl of a food processor. Add the rest of the frosting ingredients and process for about 30 seconds, until a thick-and-creamy frosting forms. Scrape down the sides of the bowl and process again for another 10 seconds, or until smooth. Transfer to an airtight container to cool completely, then cover and place in the fridge for a minimum of four hours (or overnight) to set.

Prepare the Cake


To make the cake, preheat the oven to 350 degrees Fahrenheit. Grease two (eight-inch) cake pans with avocado oil, and line the bottom of each with parchment paper.


In a medium bowl, whisk together the flaxseed and hot water and allow to thicken for about 15 minutes, stirring occasionally.


In a large bowl, combine and whisk together all the dry ingredients.


Add the remaining wet ingredients to the flaxseed mixture and whisk together well. Add the wet ingredients to the dry; using a spatula, mix everything well until a thick, smooth batter forms.


Divide the batter evenly between the two pans, using the back of a spoon to smooth out the surface of the batter. Bake on the center rack for 30 to 35 minutes, or until a toothpick inserted in the center comes out clean. Let the cakes cool in the pan for 30 minutes, then run a kitchen knife around the edges of each cake to loosen. Invert each cake onto a rack and peel off the parchment paper. Allow to cool completely, about two hours. If working ahead, wrap each cake layer individually and tightly in plastic wrap and store at room temperature until you are ready to assemble the cake.



To assemble the cake, transfer the first layer to a cake stand or a serving dish. Add half the chocolate frosting and spread it evenly over the cake with the back of a large spoon. Place the second cake layer on top of the frosted first layer and add the remaining frosting.


Serve the cake immediately or refrigerate until chilled, about four hours, before serving. Store any leftover cake in the fridge for up to three days, covered with plastic wrap, making sure to gently press the wrap against the surface of the cake to create an airtight seal.


From The Kitchen Commune: Meals to Heal and Nourish Everyone at Your Table, copyright © 2024 by Chay Wike. Reprinted by permission of the author and Flashpoint Books, Seattle, WA.

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Grain-Free Dark Chocolate Cake with Chocolate Sweet Potato Frosting

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