Apple Galette

Ingredients (22)

• For the galette dough:
• 1 3/4 cups all-purpose flour
• 1/3 cup granulated sugar
• 1/4 cup coarse cornmeal
• 1/4 teaspoon salt
• 1/2 cup cold butter, cut into small pieces
• 1/3 cup buttermilk
• For the apple filling:
• 4 medium apples, peeled and thinly sliced (about 1/4-inch thick)
• 1 tablespoon fresh lemon juice
• 1/4 cup packed brown sugar
• 2 teaspoons cornstarch
• 1 teaspoon ground cinnamon
• 1/2 teaspoon pure vanilla extract
• 1/8 teaspoon ground allspice, optional
• For the topping:
• 1 egg
• 1 tablespoon turbinado sugar
• 1/4 teaspoon ground cinnamon
• For serving:
• Salted caramel sauce
• Vanilla ice cream