Whipped Mascarpone and Raspberries Keto Cake

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A light keto-friendly cake featuring airy mascarpone cream layered with fresh raspberries, perfect for a gluten-free dessert. This french-inspired keto (gluten free) ready in about 65 minutes layers almond flour, coconut flour, baking powder into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 320 calories and feeds 8, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 30 min Cook: 35 min Serves 8 French cuisine 320 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F (175°C). In a medium bowl, whisk together 1 1/2 cups almond flour, 1/4 cup coconut flour, and 1 tsp baking powder until evenly combined.
  2. Step 2: In a large bowl, using an electric mixer, cream 1/2 cup softened unsalted butter and 3/4 cup erythritol sweetener on medium speed for 2-3 minutes until light and fluffy.
  3. Step 3: Add 4 large eggs one at a time to the butter mixture, beating well after each addition, then stir in 2 tsp vanilla extract.
  4. Step 4: Gradually fold the dry flour mixture into the wet ingredients until just combined and smooth.
  5. Step 5: Grease and line an 8-inch round cake pan with parchment paper. Pour the batter evenly into the pan and bake for 30-35 minutes until a toothpick inserted in the center comes out clean.
  6. Step 6: While cake cools, whip 1 cup heavy cream in a chilled bowl until soft peaks form. In a separate bowl, beat 8 oz mascarpone cheese until smooth, then gently fold in whipped cream and 1 tsp lemon zest until creamy.
  7. Step 7: Once the cake has completely cooled, slice it horizontally into two layers. Spread half the mascarpone cream over the bottom layer, scatter 3/4 cup fresh raspberries evenly, then place the top layer and spread the remaining cream and raspberries on top.
  8. Step 8: Chill the assembled cake in the refrigerator for at least 2 hours before serving to allow flavors to meld and cream to set.

Frequently asked questions

How long does Whipped Mascarpone and Raspberries Keto Cake take to make?

Total time is about 65 minutes (30 min prep + 35 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Whipped Mascarpone and Raspberries Keto Cake?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Whipped Mascarpone and Raspberries Keto Cake?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Whipped Mascarpone and Raspberries Keto Cake for a different number of people?

The recipe is written for 8 servings. Multiply each ingredient by (your serving target / 8). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Whipped Mascarpone and Raspberries Keto Cake keto?

Yes — this recipe is tagged keto, gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.