Description

This tender almond flour cake is infused with a touch of lemon zest, soaked in a vibrant homemade strawberry sauce, and finished with fluffy whipped cream. It delivers all the classic flavors of a traditional strawberry shortcake in a convenient, make-ahead dessert that slices beautifully.

Ingredients

Scale

Dry Cake Ingredients

3 cups fine almond flour (288g)
3/4 cup granulated keto-friendly sweetener, such as Swerve (144g)
1/3 cup unflavored whey protein isolate (30g)
2 tsp baking powder (10g)
1 tsp freshly grated lemon zest (2g)
1/4 tsp kosher salt (1g)

Wet Cake Ingredients

3 large eggs, room temperature (150g)
1/2 cup unsweetened almond milk, room temperature (120ml)
1/2 cup unsalted butter, melted and slightly cooled (113g)
1 tsp vanilla extract (5ml)

Strawberry Filling

1 1/2 cups chopped fresh strawberries (225g)
1/3 cup water (80ml)
3 tbsp powdered keto-friendly sweetener (24g)
1/4 tsp xanthan gum (1g)

Whipped Topping

1 cup heavy whipping cream, cold (240ml)
2 tbsp powdered keto-friendly sweetener (16g)
1/2 tsp vanilla extract (2.5ml)

Cook Mode Prevent your screen from going dark

Instructions

Prep the pan and oven: Preheat the oven to 325°F. Generously grease a 9×9-inch baking dish.
Mix the dry ingredients: In a large mixing bowl, whisk together the almond flour, granulated sweetener, whey protein, baking powder, lemon zest, and kosher salt until evenly distributed.
Add the wet ingredients: Create a well in the center of the dry mixture. Add the room temperature eggs, almond milk, melted butter, and vanilla extract. Stir until a thick, uniform batter forms.
Bake the cake: Spread the batter evenly into the prepared baking dish. Bake for 25 to 30 minutes, or until the edges are golden brown and a wooden skewer inserted into the center comes out completely clean. Let the cake cool slightly in the pan for about 10 minutes, then use the round handle of a wooden spoon to poke deep holes evenly across the surface.
Prepare the filling: While the cake bakes, combine the chopped strawberries and water in a medium saucepan over medium heat. Bring to a gentle boil, then reduce the heat and simmer for about 5 minutes until the berries soften. To improve the texture, lightly mash the berries with a fork or partially blend them with an immersion blender, leaving some distinct chunks intact.
Thicken the strawberry sauce: Remove the saucepan from the heat. In a small separate bowl, whisk together the powdered sweetener and xanthan gum, then evenly sprinkle this dry mixture over the surface of the warm fruit. Immediately whisk vigorously to incorporate without lumps. Allow the mixture to sit for 3 to 4 minutes to thicken slightly.
Soak the cake: Pour the warm strawberry filling evenly over the still-warm cake. Gently tap the pan against the counter a few times to encourage the sauce to settle into the poked holes. Transfer to the refrigerator and chill for at least 1 hour to set.
Whip the topping: In a medium bowl, combine the cold heavy whipping cream, powdered sweetener, and vanilla extract. Use an electric mixer to beat on medium-high speed for 2 to 3 minutes, until firm, stiff peaks form.
Finish and chill: Spread the whipped cream evenly over the cooled, soaked cake. Return to the refrigerator for 1 additional hour before slicing and serving.

Notes

Why It Works

The addition of whey protein isolate mimics the gluten structure found in traditional flour, preventing the almond flour cake from becoming overly crumbly.
Partially mashing the strawberries rather than fully pureeing them provides bursts of real fruit texture, staying true to a classic shortcake experience.
Pouring the warm strawberry sauce over a warm cake opens the crumb structure, allowing for maximum absorption and a deeply flavorful, moist base.
Lemon zest in the batter brightens the rich almond flour and complements the sweet strawberries without altering the primary flavor profile.

Common Pitfalls to Avoid

Cold ingredients: Using cold eggs or cold almond milk will instantly solidify the melted butter, resulting in a lumpy, unevenly baked cake. Ensure they are at room temperature.
Xanthan gum clumps: Xanthan gum activates instantly when it hits liquid. Pre-mixing it with the powdered sweetener before adding it to the strawberries is the best way to prevent gelatinous lumps.
Overwhipping the cream: Watch the cream closely once soft peaks form. Whipping past stiff peaks will cause the cream to separate and turn grainy.

Variations

Mixed Berry: Substitute half of the strawberries with fresh raspberries or blackberries for a complex berry flavor.
Almond Cream: Add 1/4 teaspoon of almond extract to the whipped topping to enhance the nutty notes of the cake base.

Allergy Alert

This recipe contains tree nuts (almond flour, almond milk), dairy (butter, whey protein, heavy cream), and eggs. Substitute as needed.

Nutrition (per serving — estimates)

Calories: 254 | Total Carbs: 6g (Fiber: 3g, Sugar: 2g) | Net Carbs: 3g | Fat: 22g (Saturated: 10g) | Protein: 8g

Nutritional values are approximate, based on standard reference data (USDA FoodData Central). Actual values vary by brand and exact measurements. For precision, use a tracker like MyFitnessPal or Cronometer.

Nutrition

Serving Size: 1 slice
Calories: 254
Sugar: 2g
Fat: 22g
Saturated Fat: 10g
Carbohydrates: 6g
Fiber: 3g
Protein: 8g