9 tbsp (125 g) unsalted butter, cold, cut into small cubes
⅔cup(80 g) confectioners’ sugar (powdered sugar)
1 large egg
A pinch of salt
For the filling:
5 to 6 medium apples (a mix of sweet and tart varieties is ideal, but any kind works)
2 tbsp(25 g) granulated sugar
1–1 ½tbsp(15–20 g) unsalted butter
½tspground cinnamon (optional, but recommended)
Instructions
Make the pastry
In a large bowl, mix the flour, confectioners’ sugar, and salt.
Add the cold butter and rub it into the flour with your fingertips until the mixture looks sandy.
Add the egg and bring the dough together quickly without overworking it.
Shape into a ball, flatten slightly, wrap in plastic wrap, and chill in the refrigerator for at least 30 minutes.
Prepare the tart shell
Roll out the dough on a lightly floured surface.
Transfer to a buttered tart pan (9 to 10 inches / 23–25 cm in diameter), pressing gently into the edges. Prick the base with a fork.
Keep chilled while you prepare the apples.
Prepare the apples
Peel, core, and dice 2 apples.
Cook them gently in a small saucepan with a splash of water, a little sugar, and a pinch of cinnamon, until soft, like a simple applesauce.
Slice the remaining apples into thin, even slices.
Assemble the tart
Preheat the oven to 350°F (180°C).
Spread the apple sauce evenly over the pastry base.
Arrange the apple slices on top in a neat rosette pattern.
Sprinkle with the granulated sugar, dot with butter, and finish with a light dusting of cinnamon.
Bake
Bake for 35–40 minutes, until the crust is golden and the apples are slightly caramelized.
Let cool a little before serving so the flavors settle.
Notes
My mom always preferred Reinette apples, fragrant and perfectly balanced. But you can truly use any kind, or even mix varieties: sweet (like Gala or Honeycrisp), tart (like Granny Smith), and firm (like Pink Lady).For a glossy, elegant finish: brush the warm apples with a little warmed quince jelly (confiture de coings).Best served slightly warm, though just as wonderful the next morning, when the flavors have gently melded together.