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Kombucha Cake

Recipe by Evelyn Marcella Rivera

A simple 4-ingredient cake with a soft, fluffy crumb, made with no eggs, no dairy, and less sugar. The kombucha’s fizz and acidity leaven the cake and keep it moist and lightly tangy.


  • Total Time2 hours 10 minutes
  • Yield8 slices 1x
  • DietVegan

Ingredients

Units Scale
  • 1 3/4 cups self-rising flour (or all-purpose flour plus 3 tsp baking powder)
  • 2/3 cup unrefined cane sugar (or any granulated sweetener)
  • 1 cup kombucha (any flavor; berry or lemon are nice)
  • 1/2 cup mild-flavor olive oil (or canola oil or melted plant-based butter)
  • 1 teaspoon vanilla extract (optional)
  • 1/2 teaspoon salt (optional)

Instructions

  1. Preheat the oven to 350°F (180°C). Line a 6-inch round cake pan with parchment and oil the bottom and sides well. Set aside.
  2. In a mixing bowl, whisk together the self-rising flour, sugar, and salt if using.
  3. Pour in the kombucha, oil, and vanilla if using. Stir with a rubber spatula until you have a smooth batter — don’t overmix.
  4. Pour the batter into the prepared pan.
  5. Bake on the center rack 50-60 minutes, laying foil loosely over the top after 40 minutes to prevent over-browning. Bake until golden on top and a pick inserted in the center comes out completely clean.
  6. Cool in the pan 10 minutes, then gently unmold onto a cooling rack and cool 2 hours before slicing. Serve plain or with dairy-free yogurt and berries.

Notes

Kombucha’s fizz and acidity leaven the cake and keep it moist, replacing eggs and dairy. Any flavor works (berry or lemon are great); sparkling water can sub but won’t give the same tang. Use self-rising flour, or all-purpose plus 3 tsp baking powder; avoid almond or oat flour. Don’t overmix, and bake fairly promptly to keep the fizz active. Cool fully (2 hours) before slicing or the crumb is gummy. An 8-inch pan works too (bake 35-45 minutes). Recipe written for convection — for conventional ovens, raise the temperature about 25°F. Store airtight in the fridge up to 4 days.

  • Prep Time: 10 minutes
  • Cook Time: 1 hour
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 263