Ingredients:

• 2 1/2 cups (313g) unbleached all-purpose flour
• 1 tablespoon granulated sugar
• 1 teaspoon (4g) baking powder, preferably aluminum-free
• 1 teaspoon fine sea salt
• 1/2 cup (118ml) ice water
• 1 tablespoon apple cider vinegar
• 1/2 pound (227g) cold unsalted butter, cut into 1-inch cubes
• For the filling:
• 2 cups (310g) sliced (1/4-inch) fresh peaches (about 5 peaches)
• 2 teaspoons grated lemon zest
• 1 tablespoon fresh lemon juice
• 2 tablespoons bourbon
• 1/2 cup (100g) packed light brown sugar
• 1/2 teaspoon ground cardamom
• 1/2 teaspoon freshly grated nutmeg
• 2 tablespoons unbleached all-purpose flour
• 1/4 teaspoon fine sea salt
• 1 large (50g) egg, lightly beaten with a pinch of fine sea salt, for egg wash
• Turbinado sugar for sprinkling