The Tart I Made for Sunday
I made this lemon tart for a slow Sunday lunch when I wanted dessert to feel a little special. Its almond crust smelled warm and nutty as it baked. By the time we sat down, the lemon filling had chilled into a silky, bright slice.
Why I Love Each Slice
This allulose-based lemon tart balances a crisp, tender crust with a creamy citrus filling. The allulose sweetens both layers without the crunch that some sweeteners can leave behind. It is a lovely make-ahead choice when lemon desserts are on the menu.
What Goes Into the Tart
- 2 cups fine almond flour
- 1 cup powdered allulose, divided
- 1/4 cup unsalted butter, melted
- 1/4 teaspoon fine salt
- 3 large eggs
- 3 large egg yolks
- 1/2 cup fresh lemon juice
- 2 tablespoons finely grated lemon zest
- 6 tablespoons unsalted butter, cut into small pieces
From Tart Pan to Table
- Heat the oven to 350°F (175°C).
- Mix the almond flour, 1/4 cup allulose, melted butter, and salt.
- Press the mixture into a 9-inch tart pan with a removable bottom.
- Bake for 12 to 15 minutes, until lightly golden.
- Cool the crust completely.
- Whisk the eggs, yolks, remaining 3/4 cup allulose, lemon juice, and zest in a saucepan.
- Cook over low heat, whisking constantly, until thickened.
- Remove from the heat when the filling reaches 170°F (77°C).
- Whisk in the butter pieces until melted.
- Strain the filling through a fine-mesh sieve.
- Pour it into the cooled crust.
- Refrigerate for at least 4 hours before slicing.
Little Ways to Serve It
- Add a few fresh raspberries to each slice.
- Top with a small spoonful of unsweetened whipped cream.
- Scatter thin curls of lemon zest over the tart.
- Serve chilled with hot coffee.
- Add a few toasted almond slivers for crunch.
- Cut narrow slices for a dessert tasting plate.
- Pair with fresh strawberries.
- Leave the top plain for a smooth, sunny finish.
- Serve after a simple meal when you want dessert to be the centerpiece.
- Add berries only after cutting to keep the surface tidy.
Pro Tips
- Press the crust firmly into the corners of the pan. An even base and sides will support the filling better when you remove the tart ring.
- Let the crust cool before filling it. Warm crust can soften quickly beneath the curd and make clean slices harder to lift.
- Keep the saucepan on low heat and whisk across its entire bottom. The eggs should thicken gradually rather than cooking into little pieces.
- Use a thermometer if you have one. At 170°F (77°C), the filling should coat a spoon, though it will become firmer during chilling.
- Strain the warm filling even if it looks smooth. This catches any bits of cooked egg and gives the tart a more delicate finish.
- Chill the finished tart thoroughly and cut it with a sharp knife. Wipe the blade between slices to keep the pale filling neat.
FAQs
Can I use granulated allulose instead?
You can, but give it time to dissolve fully in the warm filling. Powdered allulose blends into both the crust and the curd more easily. If you only have granulated allulose, use a product with fine crystals and whisk carefully.
Why is my lemon filling runny?
It may not have cooked long enough, or the tart may need more time to chill. The filling should noticeably thicken and coat a spoon before you pour it into the crust. Refrigerate the tart for the full 4 hours before checking its texture.
Can I make the tart ahead?
Yes, I often make it the day before serving. Keep it covered in the refrigerator and add any berries or cream just before bringing it to the table. The long chill also makes the tart easier to slice.
How should I store leftovers?
Cover the tart and refrigerate it for up to 4 days. Keep toppings separate so fruit juices do not soften the surface. I prefer to serve the slices cold rather than reheating the lemon filling.
Is this a dairy-free dessert?
No, this tart uses butter in both the crust and the filling. Those ingredients contribute to its flavor and texture, so a dairy-free swap may change the result. If you need a dairy-free dessert, choose a tart recipe developed with alternative fats.
Allulose-Based Lemon Tart with Almond Flour Crust
Ingredients
Equipment
Method
- Preheat the oven to 350°F (175°C).
- In a mixing bowl, combine the almond flour, 1/4 cup powdered allulose, melted butter, and salt. Mix until the ingredients are evenly moistened and form a crumbly mixture.
- Press the almond mixture firmly into the bottom and up the sides of a 9-inch tart pan with a removable bottom. Make the crust as even as possible, especially around the corners.
- Bake the crust for 12–15 minutes, until lightly golden. Remove from the oven and allow it to cool completely before adding the filling.
- While the crust cools, whisk the eggs, egg yolks, remaining 3/4 cup powdered allulose, lemon juice, and lemon zest together in a saucepan until well combined.
- Place the saucepan over low heat. Cook, whisking constantly and scraping across the bottom and sides of the pan, until the mixture thickens noticeably and coats the back of a spoon. Avoid letting it boil.
- Check the filling with an instant-read thermometer. Remove it from the heat when it reaches 170°F (77°C).
- Add the butter pieces to the warm lemon filling and whisk until completely melted and smooth.
- Pour the filling through a fine-mesh sieve into a clean bowl to remove any small pieces of cooked egg and create a silky texture.
- Pour the strained lemon filling into the completely cooled almond crust. Gently smooth the surface.
- Refrigerate the tart for at least 4 hours, or until the filling is thoroughly chilled and firm enough to slice cleanly.
- Carefully remove the tart ring, cut with a sharp knife, and wipe the blade between slices. Serve chilled, plain or with fresh berries, toasted almond slivers, lemon zest, or a little unsweetened whipped cream.
Notes
The Last Sunny Slice
I love taking this tart from the fridge and seeing its smooth lemon filling inside the golden almond crust. It looks inviting without needing much decoration. A few berries are lovely, but a plain slice beside a cup of tea is just as good. I always hope there will be one piece left for the next day.
