Homemade lemon curd and mascarpone cheese, make this tart smooth, creamy and so decadent!
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This tart is lemony, creamy and oh so easy to make! In my last recipe, I made lemon curd, which you can use ¾ cup of in this recipe.
This lemon mascarpone tart is great for a special occasion or even when you are craving something sweet, but want to stay in Ketosis. You can top the tart with powdered sugar or whipped cream, or nothing at all! Either way, it's just delicious!
If you don't have time to make my traditional Lemon Curd recipe, you can make my 5 Minute Microwave Lemon Curd instead!
What's in Keto Mascarpone Lemon Tart
- Super fine almond flour
- Grass-fed unsalted butter
- Egg
- Swerve confectioners
- Vanilla extract
- Lemon Curd
- Mascarpone cheese
- Heavy cream
*Exact measurements are listed in the recipe card below.
How to Make Keto Lemon Mascarpone Tart
To Makethe Gluten Free Tart Crust
Preheat oven to 350F.
Add the almond flour, butter, egg, Swerve confectioners and vanilla extract to the bowl of a food processor and mix until a dough is formed.
Place the dough in a 9″ non-stick tart pan and press out, going up the sides.
Prick the dough with a fork and cover with parchment paper and either pie weights or dried beans.
Bake for 15 minutes, then allow to cool at room temperature.
To Make the Lemon Filing
Add the lemon curd, mascarpone, Swerve confectioners and most of the heavy cream in the bowl of a food processor. Mix until smooth and creamy.
If mixture is too thick, add the remaining heavy cream.
Pour the filing into the cooled tart crust and chill in the fridge for at least 1-2 hours or until set.
Top with powdered sugar or whipped cream. Enjoy
Are Lemons Keto?
They absolutely are! In fact, lemons are recommended on Keto because of their many health benefits. Where you typically avoid a lot of citrus fruit on Keto, lemons are the exception.
They're low in sugar, a great source of Vitamin C and contain antioxidants that promote healthy digestion and aid in fluid retention. There're many other great health benefits discussed in this article on Healthline.
Tips for the Perfect Keto Lemon Tart
What Sweetener is Best for Sugar Free Tarts
This is a no bake tart, so to keep the filling smooth and creamy, you want to stick to a confectioners sugar substitute. Swerve has a really great one that tastes very much like traditional sugar, but you can use Monk Fruit or Besti Powdered Allulose.
How to To Keep Your Lemon Tart Filing Smooth
Confectioner sugar substitutes really helps to keep the lemon curd in these tarts smooth. Depending on the power of your microwave, if it cooks too quickly, it can have a slightly grainy texture. But no worries, if this happens, just run through a fine mesh strainer. Problem solved!
How Do I Keep My Gluten Free Crusts from Breaking?
Tart crusts made with almond flour are very tender when they are still warm. In order to keep them from crumbling, allow them to cool in the tart pan for at least 15 minutes before removing them.
Can I Freeze Keto Mascarpone Lemon Tart?
You sure can. This gluten free lemon tart makes for a great make ahead dessert. For best results, place the tart back into the tart pan and wrap the pan and tart in plastic wrap.
To thaw, just place it in the fridge over night, then slice and serve when ready.
What Toppings are Good with Mascarpone Lemon Tart?
This rich and creamy lemon tart is perfect with just a little whipped topping but you can add fresh berries if you prefer. You can even drizzle it with a little sugar free fruit sauce like these Raspberry, Strawberry or Blueberry sauces.
More Keto Lemon Desserts
- Lemon Thumbprint Cookies
- Strawberry Lemonade Cake
- Blueberry Lemon Scones
- Lemon Cheesecake Mousse
- Mini Lemon Curd Tarts
- Lemon Bars
- Lemon Meringue Cupcakes
- Lemon Poppy Mini Bundt Cakes
- Lemon Cupcakes
- Stove Top Lemon Curd
If you'd like to know more about baking on Keto, this article, Keto Baking Made Easy, is loaded with tips and info that you'll find helpful. You might also check out my Keto Sweet Treats eBook that has 50 amazing Keto dessert recipes, all with color pics, macros and more! I'm offering it at 50% off when you subscribe to my free weekly emails here.
Shop my favorite products on Amazon and check out my Keto Pantry List!
Keto Lemon Mascarpone Tart
Recipe Video
INGREDIENTS
For the Tart Crust
- 2 cups super fine almond flour
- ¼ cup grass-fed unsalted butter, melted
- 1 whole egg
- ¼ cup swerve confectioners (or powdered erythritol)
- 1 teaspoon vanilla extract
For the Filling
- ¾ cup lemon curd (see my recipe)
- 6 ounces mascarpone cheese, softened
- ¼ cup swerve confectioners
- 2-3 tablespoons heavy cream
INSTRUCTIONS
To make the tart crust
- Preheat oven to 350F.
- Add the almond flour, butter, egg, swerve confectioners and vanilla extract to the bowl of a food processor and mix until a dough is formed.
- Place the dough in a 9" non-stick tart pan and press out, going up the sides. Prick the dough with a fork and cover with parchment paper and either pie weights or dried beans.
- Bake for 15 minutes, then allow to cool at room temperature.
To make the filling
- Add the lemon curd, mascarpone, swerve confectioners and most of the heavy cream in the bowl of a food processor. Mix until smooth and creamy. If mixture is too thick, add the remaining heavy cream.
- Pour into the cooled tart crust and chill in the fridge for at least 1-2 hours or until set. Top with powdered sugar or whipped cream. Enjoy!
*Nutritional data is provided as a courtesy and is accurate to the best of my knowledge. You can verify it using the nutrition calculator of your choice. All data is based on net carbs, without sugar alcohol- Swerve, Erythritol, Allulose, or Monk Fruit.
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Pam
So I made the crust exacly like the recipe says and used parchment and beans for weight an after 15 min it is still so raw. What did I do wrong?
Keto Cooking Christian
Not sure honestly, some ovens are different and might require a little more time.
Kim
How do you get the crust out of the tart pan?
Keto Cooking Christian
The tart pan that I use has a removable bottom, which makes it easier. But it shouldn't stick anyway, since there's a fair amount of butter in the crust.
Ruth
Where can I find mascarpone cheese 🧀 never heard of it, thanks
Ruth
Where can I find mascarpone cheese ? never heard of it, thanks
Keto Cooking Christian
Hi Ruth,
Most grocery stores sell it, I typically buy mine from Walmart because they seem to have the best price! It's sort of like cream cheese, but milder in flavor and has a lot less carbs. I use it a lot because it doesn't overpower the dish, and it's great for thickening and adding creaminess!
Kelli
What size tart pan did you use? Do you think a pie dish would work?
Keto Cooking Christian
Hi Kelli,
I used a 9" tart pan, but a pie dish should also work. When you press out the crust, don't go all the way up the sides. Pie dishes typically have higher sides than a tart pan, so there wouldn't be enough filling to reach the top. I hope that helps!