Easy Apple Galette

Bahan-bahan (1 porsi)

• 1 and 1/2 cups (188g) all-purpose flour (spooned & leveled), plus more for work surface
• 1 Tablespoon (12g) granulated sugar
• 1/4 teaspoon salt
• 1/2 cup (8 Tbsp; 113g) cold unsalted butter, cubed*
• 1/4 cup (60ml) ice-cold water, plus more as needed
• egg wash: 1 large egg beaten with 1 Tablespoon (15ml) milk
• optional: coarse sugar
• 3 –4 apples, peeled and sliced into 1/4-inch slices (about 4–5 cups (500–600g) slices)*
• 1/4 cup (50g) packed light or dark brown sugar
• 1 and 1/2 Tablespoons (12g) all-purpose flour
• 2 teaspoons fresh lemon juice
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• optional: salted caramel sauce