Easy Keto Blueberry Mascarpone Tart Recipe: A Delicious Low-Carb Dessert Delight

Keto Blueberry Mascarpone Tart: A Decadent Delight

Indulge in the rich and creamy flavors of our Keto Blueberry Mascarpone Tart, a dessert that marries the buttery crunch of an almond flour crust with the smooth elegance of mascarpone cheese, all topped with luscious blueberries. This dessert is not only a feast for the eyes but also a fitting tribute to the keto lifestyle, offering low carbs without compromising on taste.

Whether you’re looking to impress guests, treat yourself to a guilt-free dessert, or simply love the combination of blueberries and creamy cheese, this tart is designed to delight. Its simplicity and elegance make it a perfect choice for any occasion. Read on to discover how this low-carb blueberry dessert can become the highlight of your keto culinary adventures.

Keto Blueberry Mascarpone Tart

The Story Behind This Keto-Friendly Creation

The inspiration for this Keto Blueberry Mascarpone Tart comes from a deep appreciation for the classic flavors of traditional pastry, reimagined for the keto diet. The goal was to create a dessert that feels indulgent and satisfying, without the typical high-carb guilt. This tart does just that, with each component carefully selected to provide maximum flavor while keeping carbs to a minimum.

Almond flour serves as the foundation for our tart crust, offering a gluten-free and low-carb alternative to traditional flour. Its nutty flavor complements the creamy mascarpone filling, making for a harmonious blend of taste and texture. The natural sweetness of blueberries, enhanced with a touch of erythritol and lemon zest, adds a burst of freshness without the sugar spike.

Each ingredient in this recipe has been chosen not only for flavor but also for its nutritional profile. Mascarpone cheese, for instance, is rich in fats but low in carbs, aligning perfectly with the keto diet’s macronutrient ratios. By using erythritol, a sugar alcohol that has minimal impact on blood sugar levels, we ensure that this dessert is both sweet and keto-friendly.

Moreover, the health benefits of blueberries are well-documented, as they are packed with antioxidants and vitamins. By incorporating them into this tart, we add a nutritional punch that complements the keto diet’s focus on health and well-being.

Preparing Keto Blueberry Mascarpone Tart

Mastering the Method

Creating the perfect Keto Blueberry Mascarpone Tart is all about precision and patience. The crust must be golden and crisp, providing a sturdy base for the creamy filling. Achieving this requires careful attention to the baking process—watch for the edges to turn a rich, golden hue, indicating it’s time to remove the crust from the oven.

When preparing the mascarpone filling, ensure that all ingredients are at room temperature to avoid lumps. Smoothness is key to a luxurious mouthfeel, so take the time to gently fold the whipped cream into the cheese mixture. This step introduces air, giving the filling a light and airy texture that contrasts beautifully with the dense crust.

As for the blueberry topping, the secret lies in the subtle enhancement of the berries’ natural flavors. A sprinkle of erythritol and a hint of lemon zest work together to elevate the blueberries, bringing out their sweetness and adding a zesty note that cuts through the richness of the filling.

Remember, refrigeration is crucial for setting the tart. Patience will be rewarded with a dessert that slices cleanly and presents beautifully on the plate. And for those who prefer a firmer texture, an overnight chill can make all the difference.

Keto Blueberry Mascarpone Tart Slice

Variations to Suit Every Taste

Raspberry Almond Delight

Swap out blueberries for raspberries and add a sprinkle of slivered almonds on top for a tart that’s equally as keto-friendly but with a different berry twist. Raspberries offer a slightly tart contrast to the sweet mascarpone, and the almonds provide an extra crunch.

Chocolate Hazelnut Heaven

For a chocolatey twist, mix unsweetened cocoa powder into the crust and top the tart with roasted hazelnuts. The rich flavor of chocolate pairs perfectly with the creamy filling, and hazelnuts add a nutty depth.

Lemon Coconut Dream

Infuse the mascarpone filling with lemon juice and zest for a citrusy kick, and replace half of the almond flour in the crust with coconut flour. The result is a tropical-inspired tart that still keeps carbs in check.

Substitutions for Dietary Needs

Understanding the need for flexibility in the kitchen, especially when following a keto diet, here are some substitutions that can be made without compromising the low-carb integrity of this dessert:

Coconut Oil for Butter: For those who are dairy-free or prefer the taste of coconut, coconut oil can be a suitable substitute for butter in the crust. It provides a similar texture and adds a subtle coconut flavor.

Coconut Cream for Heavy Cream: If you’re avoiding dairy, coconut cream can replace heavy cream in the filling. It whips up nicely and offers a complementary flavor to the mascarpone.

Stevia for Erythritol: If erythritol isn’t your preferred sweetener, stevia can be used in its place. Be mindful of the conversion rates, as stevia is often much sweeter than erythritol.

Frequently Asked Questions

Can I use frozen blueberries for the topping? Yes, you can use frozen and thawed blueberries if fresh ones aren’t available. Just be sure to drain any excess liquid before using.

How long does the tart keep in the fridge? The tart can be stored in the refrigerator for up to 3 days. Cover it with plastic wrap to maintain freshness.

Is this tart suitable for diabetics? While this tart is low in carbs and uses a sugar substitute, it’s always best for diabetics to consult with their healthcare provider before introducing new foods into their diet.

Can I make the tart crust ahead of time? Absolutely! The crust can be baked and stored, covered, at room temperature for up to 2 days before adding the filling.

What can I use if I don’t have a tart pan? If you don’t have a tart pan, a pie dish can work as a substitute. Keep in mind that the presentation and serving may differ slightly.

Keto Blueberry Mascarpone Tart

This Keto Blueberry Mascarpone Tart combines a buttery almond flour crust with a creamy mascarpone filling and a fresh blueberry topping, creating a decadent yet healthy dessert that's low in carbs and high in flavor.
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Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes
Course Desserts
Cuisine Keto, Low-Carb
Servings 8 servings
Calories 350 kcal


  • Mixing bowls
  • 9-inch tart pan with removable bottom
  • Electric hand mixer or stand mixer
  • rubber spatula


For the crust:

  • 1 ½ cups almond flour 150g / 5.3oz
  • ¼ cup granulated erythritol 48g / 1.7oz
  • ¼ tsp salt 1.2g / 0.04oz
  • cup unsalted butter, melted 76g / 2.7oz

For the mascarpone filling:

  • 8 ounces mascarpone cheese, softened 227g / 8oz
  • ½ cup powdered erythritol 96g / 3.4oz
  • 1 tsp vanilla extract 5ml / 0.17oz
  • ½ cup heavy cream 120ml / 4oz

For the blueberry topping:

  • 1 cup fresh blueberries 148g / 5.2oz
  • 1 tbsp granulated erythritol 12g / 0.4oz
  • ½ tsp lemon zest 1g / 0.03oz


  • Prepare the crust: Preheat your oven to 350°F (175°C). In a mixing bowl, combine almond flour, granulated erythritol, and salt. Add the melted butter and mix until a dough forms. Press the dough into the bottom and up the sides of a 9-inch tart pan with a removable bottom. Bake for 12-15 minutes or until golden brown. Allow to cool completely.
  • Make the filling: In another bowl, beat the softened mascarpone cheese with powdered erythritol and vanilla extract until smooth. In a separate bowl, whip the heavy cream until stiff peaks form. Gently fold the whipped cream into the mascarpone mixture until well combined.
  • Assemble the tart: Spread the mascarpone filling evenly over the cooled crust. Chill the tart in the refrigerator for at least 1 hour to set the filling.
  • Prepare the blueberry topping: In a small bowl, toss the blueberries with granulated erythritol and lemon zest until evenly coated. Arrange the blueberry mixture on top of the set mascarpone filling.
  • Serve: Once the tart is fully assembled, chill for an additional 10 minutes to allow the flavors to meld. Slice and serve.


For the best texture, ensure all your dairy ingredients are at room temperature before starting the recipe.
The tart can be stored in the fridge for up to 3 days. Cover with plastic wrap to keep it fresh.
If fresh blueberries are not available, frozen (and thawed) blueberries can be used as a substitute.
To further reduce the carb count, you can skip the blueberry topping and enjoy the tart with just the mascarpone filling.


Calories: 350kcalCarbohydrates: 10gProtein: 7gFat: 32gFiber: 3gNet Carbs: 5g
Keyword Almond Flour Tart Crust, Keto Blueberry Tart, keto dessert, Low-Carb Blueberry Dessert, Mascarpone Tart Recipe
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