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Keto Strawberry Angel Food Cake - Light, Fluffy, and Low-Carb

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Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings: 12 servings
Ingredients Method

Ingredients
  

  • 12 large egg whites, room temperature
  • 1/2 teaspoon cream of tartar
  • 1/4 teaspoon fine sea salt
  • 3/4 cup powdered erythritol (or a powdered 1:1 keto sweetener), divided
  • 1/4 cup allulose (optional, helps softness and reduces cooling effect)
  • 1/3 cup super-fine almond flour
  • 1 tablespoon coconut flour
  • 2 teaspoons vanilla extract
  • 1/2 teaspoon almond extract (optional but great for flavor)
  • 1 teaspoon lemon zest (optional, brightens the strawberries)
  • 1 cup finely diced fresh strawberries, well-dried on paper towels
  • Whipped cream topping: 1 cup heavy cream, 2–3 tablespoons powdered keto sweetener, 1/2 teaspoon vanilla
  • Extra sliced strawberries for garnish

Method
 

  1. Prep the pan: Use an ungreased 10-inch tube pan or angel food cake pan. Do not grease it—this batter needs to climb the sides to rise. Preheat the oven to 325°F (163°C).
  2. Dry the strawberries: Dice strawberries small and spread them on paper towels. Press gently to remove excess moisture. This helps keep the batter fluffy.
  3. Make the dry mix: In a bowl, whisk almond flour, coconut flour, half the powdered sweetener (3/8 cup), and a pinch of salt. Sift this mixture twice to make it extra light. Set aside.
  4. Whip the egg whites: In a very clean, dry mixing bowl, add egg whites, cream of tartar, and salt. Beat on medium speed until frothy, about 1 minute. Increase to medium-high and gradually sprinkle in the remaining powdered sweetener and the allulose. Beat until soft, glossy peaks form.
  5. Flavor the meringue: Add vanilla, almond extract, and lemon zest. Beat briefly until just combined. You want soft peaks that hold but still look slightly droopy at the tip.
  6. Fold in the dry ingredients: Using a large spatula, sift one-third of the flour mixture over the meringue and fold gently from the bottom up. Repeat in two more additions, folding slowly to keep the batter airy.
  7. Add strawberries: Sprinkle the diced strawberries lightly with a teaspoon of almond flour if they seem damp. Fold them into the batter with a few gentle turns. Don’t overmix.
  8. Fill the pan: Spoon the batter into the ungreased tube pan. Use a knife to gently swirl through once to pop any large air pockets. Smooth the top lightly.
  9. Bake: Bake at 325°F (163°C) for 35–42 minutes, until the top is golden and springs back lightly when touched. A toothpick near the center should come out clean.
  10. Cool upside down: Immediately invert the pan onto its legs or over a bottle. Let cool completely, 2–3 hours. This prevents collapse and keeps the crumb tall and airy.
  11. Release and slice: Run a thin knife around the sides and center tube to release the cake. Lift out, then run the knife under the bottom to free it. Use a serrated knife and a gentle sawing motion to slice.
  12. Whipped cream: Beat the heavy cream, sweetener, and vanilla to soft peaks. Spoon over slices and garnish with strawberries.