→ Pastry
01 - 1 1/4 cups all-purpose flour
02 - 1/2 cup cold unsalted butter, cubed
03 - 1/4 teaspoon salt
04 - 3 to 4 tablespoons ice water
→ Filling
05 - 2 cups butternut squash, peeled and diced (1/2-inch cubes)
06 - 2 medium apples, peeled, cored, and sliced
07 - 2 tablespoons olive oil
08 - 1 small red onion, thinly sliced
09 - 2 tablespoons fresh sage leaves, chopped
10 - 1/2 teaspoon salt
11 - 1/4 teaspoon black pepper
12 - 1/2 teaspoon ground nutmeg
13 - 1/2 cup crumbled goat cheese or feta (optional)
→ Assembly
14 - 1 egg, beaten (for egg wash)
15 - 1 tablespoon milk (for egg wash)
16 - 1 teaspoon coarse sea salt (optional, for sprinkling)