Strawberry Mascarpone Tart (Low Carb, Keto)
This tart is one of those reliably impressive recipes I turn to when I want a dessert that looks like effort but lets me stay on track with low-carb goals. It pairs a tender coconut-flour crust with a cloudlike mascarpone filling, finished simply with fresh strawberries. The texture contrast — crisp-ish edge, silky filling, bright berries — is what keeps me making it.
The method is straightforward and forgiving: melt, mix, bake, fold, chill, and top. You don’t need advanced pastry skills, but a clean whisk and attention to egg whites will pay off. The whole tart comes together with pantry-stable items (mascarpone aside) and takes advantage of gentle chilling to set the filling.
I’ll walk you through exactly what I use, the complete step-by-step from the source recipe, troubleshooting tips I rely on, and sensible ways to tweak sweetness and presentation while keeping this firmly low-carb and keto-friendly. No fluff — just reliable, practical notes that help you get it right the first time.
Ingredient Checklist
- 120g / ½ cup coconut oil — provides fat and structure for the crust; melt before combining for even mixing.
- 100g / ¾ cup plus 2 tablespoon coconut flour — main dry component for the crust; very absorbent so it forms a firm dough quickly.
- 2 eggs — used in the crust to bind and add lift; room temperature helps them incorporate smoothly.
- 1 teaspoon vanilla extract — gentle background flavor in the crust.
- 1 teaspoon powdered sweetener — sweetens the crust without adding carbs; powdered form blends more evenly.
- 250g / 8.8 ounce / 1 very generous cup mascarpone — the rich, creamy base of the filling; keep it cold until use for best texture.
- 2 eggs separated — yolks enrich the mascarpone filling; whites are beaten to stiff peaks to lighten it.
- 1 teaspoon vanilla extract — flavor in the mascarpone filling; pairs naturally with strawberries.
- 1–2 tablespoon powdered sweetener — controls filling sweetness; 1 for subtly sweet, 2 for more dessert-like.
- 200g / 1 cup strawberries — fresh finishing fruit; slice, halve, or leave whole depending on look and berry size.
Directions: (Strawberry Mascarpone Tart (Low Carb, Keto))
- Preheat oven to 180°C (356°F).
- If the coconut oil is solid, melt it so it is liquid. In a bowl or food processor, combine 2 eggs, 120 g coconut oil, 1 teaspoon vanilla extract and 1 teaspoon powdered sweetener; blend until smooth.
- Sift 100 g coconut flour into the wet mixture and mix until a soft dough forms. The dough should be soft but not overly sticky. If it feels very soft or loose, chill it for 10 minutes to firm up.
- Line a tart or pie pan with parchment paper or grease it with a little coconut oil. Either roll the dough between two sheets of parchment to an even thickness and transfer it into the pan, or press the dough directly and evenly into the pan to form the base and slightly up the sides.
- Bake the crust for about 10 minutes, or until the edges are lightly browned. Remove from the oven and let the crust cool completely in the pan.
- While the crust cools, separate 2 eggs into yolks and whites. Place the egg whites in a clean, dry bowl and beat with an electric mixer or hand whisk until stiff peaks form.
- In a separate bowl, combine 250 g mascarpone, the 2 egg yolks, 1 teaspoon vanilla extract and 1–2 tablespoons powdered sweetener (use 1 tablespoon for less sweet, 2 for sweeter). Mix until smooth and homogeneous.
- Gently fold the beaten egg whites into the mascarpone mixture in two additions, using a folding motion to keep the mixture light and even.
- Spoon the mascarpone filling into the cooled tart crust and smooth the top.
- Chill the tart in the refrigerator for at least 30 minutes to set.
- Just before serving, top the tart with 200 g strawberries, sliced, halved, or whole as you prefer.
Why It’s My Go-To
This tart hits a sweet spot: it looks and tastes like a celebration dessert but stays within low-carb boundaries. The crust uses coconut flour, which keeps carbs down while adding a subtle coconut note that complements the mascarpone. The filling is airy because of the beaten egg whites — that step transforms dense mascarpone into something light and spoonable that slices nicely.
I also appreciate how forgiving it is. The crust doesn’t require precise rolling pin work if you press it into the pan, and the filling tolerates a little overmixing better than many cream-based fillings. The chilling step does the heavy lifting for texture, so you can prep ahead and assemble at the last minute for the best-looking tart.
Flavor-Forward Alternatives
Because the recipe is built from a short list, most adjustments are about balance rather than swapping ingredients. A few simple changes using what’s already in the recipe:
- Adjust the filling sweetness between 1 and 2 tablespoons powdered sweetener to shift the overall profile without changing other components.
- Vary strawberry presentation: thin slices laid in concentric circles give a refined look; halved berries create a rustic, homey finish; whole small berries make the tart look abundant.
- Double down on vanilla by using the full 2 teaspoons across crust and filling for stronger aromatic notes while keeping carbs unchanged.
Hardware & Gadgets
- Oven — required for baking the crust.
- Tart or pie pan — 9-inch or similar size works; use parchment or grease as directed.
- Electric mixer or hand whisk — helpful to beat the egg whites to stiff peaks cleanly.
- Food processor or mixing bowls — a food processor speeds dough mixing; a bowl works fine too.
- Spatula — for folding egg whites into mascarpone without deflating them.
Things That Go Wrong
Crust too soft or loose: coconut flour is highly absorbent. If the dough seems very soft after adding the flour, don’t force it at room temperature — chill it for the suggested 10 minutes. This firms up the fats and makes it much easier to press or roll.
Curdled or lumpy mascarpone mixture: if mascarpone is too cold or too warm, it can be difficult to smooth. Let cold mascarpone sit a few minutes to soften slightly for easier mixing, but don’t warm it to room temperature where it can become loose. Mix the yolks and mascarpone until homogeneous before folding in whites.
Flat or collapsed filling: this happens if the egg whites weren’t beaten to stiff peaks, or if they were overfolded and deflated. Ensure clean, dry equipment for whipping whites. Fold gently in two additions and stop when the mixture looks uniformly light and aerated.
Soggy bottom: if you skip cooling the crust fully before adding the filling, moisture from the filling and strawberries can soften it. Always let the crust cool completely in the pan, and chill the assembled tart to set the filling before topping with fruit.
Make It Diet-Friendly
This is already presented as a low-carb, keto-friendly dessert. A few practical notes to keep it that way and control portions:
- Use 1 tablespoon powdered sweetener in the filling if you want a milder-sweet dessert and lower overall sweetener per serving.
- Serve modest slices; the mascarpone is calorie-dense, so smaller portions deliver the flavor while aligning with a calorie-conscious approach.
- Stick to the specified coconut flour amount — increasing it dramatically will alter texture and caloric makeup per slice.
Notes on Ingredients
120 g coconut oil — This is the fat for the crust. It binds the dry coconut flour and, when melted, helps create a dough that firms up on chilling and bakes to a lightly crisp edge. If your coconut oil is liquid at room temperature, measure with care; chilling the dough briefly can help if it’s too loose.
100 g coconut flour — Extremely absorbent; it thickens quickly. Sifting before mixing avoids lumps and helps you get an even dough. Because of how absorbent it is, the dough will be firmer than wheat-based doughs and responds well to pressing into the pan rather than aggressive rolling.
Eggs (2 for crust, 2 separated for filling) — The whole eggs in the crust act as binder and structure; separating for the filling lets the yolks enrich and the whites aerate. Room-temperature eggs incorporate more smoothly; whites whip better when they’re cool.
Vanilla extract (two teaspoons total) — Distribute between crust and filling as the recipe instructs. It harmonizes the fat of the mascarpone with the acidity and brightness of the strawberries.
Powdered sweetener — Used in both crust and filling. Powdered form mixes more evenly and won’t leave grittiness that some granulated sweeteners can. Stick to the amounts given; the filling allows a range so you can taste and choose 1 or 2 tablespoons.
250 g mascarpone — The star of the filling. Its richness is what lets a small amount go a long way. Keep it chilled and mix gently so it stays smooth and stable once folded with beaten whites.
200 g strawberries — Freshness matters here; sweet, ripe berries are easier to slice and present better on top. Add them just before serving so they don’t weep onto the tart during storage.
Meal Prep & Storage Notes
This tart is very prep-friendly. You can bake and cool the crust in advance and keep it covered in the pan in the refrigerator for up to 24 hours. The mascarpone filling can be mixed and folded, then refrigerated briefly until you’re ready to assemble. Once filled and chilled, the tart will keep well in the refrigerator for 2–3 days. Add the strawberries just before serving for the best texture.
Freezing: I don’t recommend freezing the assembled tart with fresh strawberries on top because the fruit will lose texture. If you need to freeze components, the crust can be frozen (wrapped) for up to a month; thaw before filling. The mascarpone mixture is best fresh but can be chilled overnight if needed.
Your Top Questions
How long should I chill the tart? The recipe calls for at least 30 minutes; for a firmer set, chill 1–2 hours. The filling firms as it cools, and longer chilling makes cleaner slices.
Can I make the crust ahead? Yes. Bake the crust and cool it in the pan, then wrap and refrigerate up to 24 hours. Fill the tart the day you plan to serve for best texture.
What if the egg whites don’t whip up? Make sure the bowl and whisk are free from oil or egg yolk traces and that the whites are cold. An electric mixer helps. If they still fail to whip, the aeration step is lost and the filling will be denser — still tasty, just different.
Will the tart be very sweet? That depends on your sweetener choice and whether you use 1 or 2 tablespoons in the filling. Start with 1 tablespoon if you prefer restrained sweetness; the strawberries add natural brightness.
Can I substitute mascarpone? The recipe relies on mascarpone’s specific fat and texture. Substituting will change mouthfeel and structure; if you must substitute, expect a different final texture.
That’s a Wrap
Strawberry Mascarpone Tart (Low Carb, Keto) is a dessert that balances simplicity with impact. Follow the steps in order, pay attention to egg white aeration and crust chilling, and you’ll have a dessert that feels elegant without derailing your low-carb day. Make it for a small gathering or a quiet weekend treat — it slices beautifully and tastes even better after a short chill.
Strawberry Mascarpone Tart (Low Carb, Keto)
Ingredients
Ingredients
- 120 g /1/2 cupcoconut oil
- 100 g /3/4 cup plus2 tablespooncoconut flour
- 2 eggs
- 1 teaspoonvanilla extract
- 1 teaspoonpowdered sweetener
- 250 g /8.8 ounce/1 very generous cupmascarpone
- 2 eggsseparated
- 1 teaspoonvanilla extract
- 1-2 tablespoonpowdered sweetener
- 200 g /1 cupstrawberries
Instructions
Instructions
- Preheat oven to 180°C (356°F).
- If the coconut oil is solid, melt it so it is liquid. In a bowl or food processor, combine 2 eggs, 120 g coconut oil, 1 teaspoon vanilla extract and 1 teaspoon powdered sweetener; blend until smooth.
- Sift 100 g coconut flour into the wet mixture and mix until a soft dough forms. The dough should be soft but not overly sticky. If it feels very soft or loose, chill it for 10 minutes to firm up.
- Line a tart or pie pan with parchment paper or grease it with a little coconut oil. Either roll the dough between two sheets of parchment to an even thickness and transfer it into the pan, or press the dough directly and evenly into the pan to form the base and slightly up the sides.
- Bake the crust for about 10 minutes, or until the edges are lightly browned. Remove from the oven and let the crust cool completely in the pan.
- While the crust cools, separate 2 eggs into yolks and whites. Place the egg whites in a clean, dry bowl and beat with an electric mixer or hand whisk until stiff peaks form.
- In a separate bowl, combine 250 g mascarpone, the 2 egg yolks, 1 teaspoon vanilla extract and 1–2 tablespoons powdered sweetener (use 1 tablespoon for less sweet, 2 for sweeter). Mix until smooth and homogeneous.
- Gently fold the beaten egg whites into the mascarpone mixture in two additions, using a folding motion to keep the mixture light and even.
- Spoon the mascarpone filling into the cooled tart crust and smooth the top.
- Chill the tart in the refrigerator for at least 30 minutes to set.
- Just before serving, top the tart with 200 g strawberries, sliced, halved, or whole as you prefer.
Equipment
- Oven
- Mixing Bowl
- Food Processor
- Electric Mixer or Whisk
- tart pan
- Parchment Paper
- Spatula
Notes
Optional: decorate with mint leaves! (I meant to do this and forgot! Plenty of fresh mint tea for me now)
