Step 1: Prepare the Pastry

If using Homemade Shortcrust (Option 2):

1. Combine Dry Ingredients: In a large bowl, whisk together the flour and salt.

2. Cut in the Butter: Add the cold, cubed butter to the flour. Using a pastry blender or your fingertips, quickly cut the butter into the flour until the mixture resembles coarse breadcrumbs with some pea-sized pieces of butter remaining.

3. Add Liquids: Whisk the egg yolk (if using) into 3 tablespoons of ice water. Drizzle this over the flour mixture and toss with a fork until the dough starts to come together in shaggy clumps. If it’s too dry, add more ice water, one teaspoon at a time.

4. Chill: Gather the dough into a disk, wrap it tightly in plastic wrap, and refrigerate for at least 1 hour, or up to 2 days.

5. Roll and Fit: On a lightly floured surface, roll the chilled dough into an 11-inch circle. Carefully transfer it to your 9-inch tart pan. Gently press the dough into the bottom and up the fluted sides. Trim any excess dough flush with the rim of the pan. Prick the bottom of the crust all over with a fork.

6. Freeze and Blind Bake: Freeze the tart shell for 30 minutes until solid. Meanwhile, preheat your oven to 400°F (200°C). Line the frozen tart shell with parchment paper and fill with pie weights or dried beans. Bake for 15-20 minutes. Carefully remove the parchment and weights, then bake for another 5-7 minutes, until the bottom is pale golden. This process, called blind baking, is essential for a crisp crust.

If using Puff Pastry (Option 1):

1. Preheat your oven to 400°F (200°C).

2. Unroll your thawed puff pastry sheet onto a parchment-lined baking sheet.

3. Using a sharp knife, gently score a ½-inch border around the edges of the pastry (don’t cut all the way through).

4. Inside the border, prick the pastry all over with a fork. This prevents the center from puffing up too much.

5. Bake for 15 minutes, or until the pastry is puffed and golden. If the center has puffed up, gently press it down with the back of a spoon.

Step 2: Prepare and Assemble the Filling

1. Reduce Oven Temperature: Lower the oven temperature to 375°F (190°C).

2. Prep the Peppers: Pat the drained roasted red peppers very dry with paper towels. You can leave them whole or slice them into strips.

3. Make the Custard: In a medium bowl, whisk the two large eggs until smooth. Whisk in the heavy cream, minced garlic, fresh thyme leaves, salt, and pepper.

4. Assemble the Tart: Arrange the dried pepper strips in a single layer over the bottom of your pre-baked tart shell (or the center of your puff pastry). Crumble the goat cheese evenly over the peppers.

5. Pour and Bake: Carefully and slowly pour the egg and cream mixture over the peppers and goat cheese, allowing it to fill in all the gaps.

6. Bake for 25-35 minutes, until the custard is set and the top is lightly golden brown. The center should have a very slight wobble when gently shaken; it will continue to set as it cools.

Step 3: Cool and Garnish

1. Let the tart cool in the pan on a wire rack for at least 15-20 minutes before serving. This allows the filling to set completely, ensuring clean slices.

2. Just before serving, garnish with a few fresh thyme sprigs and a generous drizzle of balsamic glaze.