Apple Cinnamon Streusel Galette

Ingredients (14)

• 1 3/4 cups all-purpose Gold Medal flour
• 1/3 cup granulated sugar
• 1/4 cup coarse cornmeal
• 1/4 teaspoon salt
• 1/2 cup cold butter
• 1/3 cup buttermilk
• 2 large Granny Smith apples
• For the Cinnamon Streusel Topping:
• 1/4 cup all-purpose Gold Medal Flour
• 1/4 cup light brown sugar
• 1 teaspoon ground cinnamon
• 4 tablespoons cold butter
• 1 egg
• 2 tablespoons turbinado sugar