Ingredients
For the Pie Crust
- 1 1/4 cups (162 g) all-purpose flour
- 1/2 tsp kosher salt
- 1/2 cup (116 g) salted butter, cold and cut into 1/2-inch (1-cm) cubes
- 3 to 4 tbsp (60 ml) ice cold water
- 1 egg + 1 tbsp (15 ml) water, for egg wash
For the Filling
- 3 tbsp (44 g) salted butter
- 1 small onion, sliced thinly
- 2 tsp (10 g) granulated sugar
- Pinch of kosher salt
- 1/4 cup (60 ml) dry white wine
- 2 medium sweet apples, peeled, cored, and sliced into 1/4-inch (6.35 mm) slices
- 4 oz (114 g) brie cheese, rind removed and sliced
- 1/2 cup (50 g) parmesan cheese, grated
- 4 to 6 sprigs fresh thyme, leaves stripped
- Flaky sea salt, for serving
- Freshly cracked pepper, for serving
- 3 tbsp (45 ml) honey
Instructions
- Make the Pie Crust: In a medium bowl, whisk together the flour and salt. Add the cold butter cubes and cut them into the flour using a pastry blender, fork, or your fingers until the mixture resembles pea-sized crumbles.
- Add Water and Form Dough: Gradually add ice-cold water one tablespoon at a time, stirring with a wooden spoon. Use your hands to bring the dough together until it is no longer crumbly and forms a consistent ball. Divide the dough into two equal discs, wrap in plastic wrap.
- Chill the Dough: Refrigerate the dough discs for at least 1 hour, up to 3 days, to allow it to firm up before rolling.
- Caramelize the Onions: In a medium skillet over medium-high heat, melt the butter. Add the thinly sliced onions and cook until translucent, about 5 minutes. Sprinkle sugar and salt, then pour in the white wine to deglaze, simmering. Continue cooking over medium-low heat, stirring occasionally to prevent burning, until onions are deeply browned and sticky, about 30 minutes. Remove from heat and transfer the onions to a heat-safe bowl.
- Preheat Oven and Prepare Baking Sheets: Heat the oven to 400°F (204°C) and line two large baking sheets with parchment paper.
- Roll and Cut Dough: Remove dough from fridge, unwrap, and roll out on a floured surface into a 12-inch (30-cm) circle. Using a 4-inch (10-cm) round cutter, cut out approximately 9 circles. Re-roll scraps to cut more circles as needed. Press each dough circle into 4-inch tart pans, folding the overhang inward along the edges to make the crust edge thicker. Prick the bottoms with a fork. Chill the tart shells on baking sheets in the fridge or freezer for about 20 minutes.
- Apply Egg Wash and Assemble Tarts: Whisk together egg and tablespoon of water. Brush all over chilled crusts. Divide caramelized onions evenly among tarts, layering apple slices and brie cheese so cheese partially covers apples, finishing with a generous sprinkle of parmesan cheese on top.
- Bake the Tarts: Place the tart pans on the prepared baking sheets and bake in the preheated oven for 20 to 25 minutes, until the crust turns golden brown and the cheese is melted with light browning on top.
- Finish and Serve: Remove tarts from oven and let cool slightly. Serve warm with fresh thyme leaves, flaky sea salt, freshly cracked black pepper, and a drizzle of honey for a perfect balance of flavors.
Notes
- For best results, use sweet apples like Fuji or Honeycrisp for natural sweetness and texture.
- Caramelizing onions takes time but adds deep flavor; do not rush this step.
- The crust can be made ahead and stored in the refrigerator for up to 3 days or frozen for longer storage.
- If you don’t have tart pans, you can shape the dough circles on a baking sheet with folded edges to form freeform tarts.
- Adjust honey drizzle to taste; more honey adds a lovely sweet contrast to savory flavors.
- Use a dry white wine like Sauvignon Blanc or Pinot Grigio to deglaze for subtle acidity without overpowering sweetness.
- Prep Time: 1 hour 20 minutes
- Cook Time: 55 minutes
- Category: Appetizer
- Method: Baking
- Cuisine: French-inspired
- Diet: Vegetarian