Instructions
Prepare the Dough:
If using homemade rough puff pastry, complete the second refrigeration step before proceeding. If using store-bought frozen puff pastry, ensure it is fully thawed. Keep the dough in the refrigerator until needed.
Make the Cranberry Sauce:
Rinse the cranberries and set aside 1/4 cup (25g) for added texture in the finished tarts. In a medium saucepan, combine the remaining cranberries, water, orange juice, and sugar. Stir the mixture occasionally as it comes to a simmer. Once simmering, reduce the heat to medium-low and continue to cook, stirring occasionally, until the liquid has reduced and the cranberries have burst, about 10 minutes. Remove the saucepan from the heat and stir in the reserved cranberries, orange zest, and vanilla extract. Let the sauce cool slightly while you prepare the pastry.
Preheat and Prepare the Muffin Pan:
Preheat the oven to 400°F (204°C). Grease a 12-cup muffin tin using nonstick spray or butter.
Roll and Cut the Puff Pastry:
On a lightly floured surface, roll the puff pastry dough into a 12x16-inch rectangle. If using two sheets of store-bought puff pastry, place the edge of one sheet over the other and roll with a pin to adhere the two sheets. Cut the dough into 12 squares, each measuring approximately 4 inches.
Assemble the Tarts:
Brush the puff pastry squares with the egg wash, covering the edges as well. Transfer each square to a muffin cup, pressing gently to form a "crust." Cut the brie into 12 slices, each about 1/2 ounce (14g), and place one slice in the center of each pastry. Spoon 2 heaping teaspoons of cranberry sauce onto each piece of brie. Gently fold the corners of the pastry inward toward the center, creating a rustic tart shape. Sprinkle each tart with coarse sugar.
Bake the Tarts:
Bake for about 20 minutes, or until the pastry turns golden brown. If using pecans, add them halfway through the baking time, placing one or two halves in the center of each tart and continuing to bake for the remaining 10 minutes.
Garnish and Serve:
Once baked, remove the tarts from the oven and garnish with flaky sea salt and fresh thyme leaves. Let the tarts cool for a few minutes before carefully removing them from the muffin pan with a spoon. Serve warm.
Storing Leftovers:
Any leftover tarts can be stored in the refrigerator for up to 3 days. To reheat, cover them with aluminum foil and bake in a 300°F (149°C) oven for a few minutes until warmed through.