Blackberry Cobbler

Ingredients (15)

• For the filling:
• 6 cups blackberries
• 1/3 cup granulated sugar
• 2 tablespoons cornstarch
• Zest of one lemon
• 1 teaspoon fresh lemon juice
• For the topping:
• 1 1/2 cups all-purpose flour
• 1 1/2 cups granulated sugar
• 2 teaspoons baking powder
• 3/4 teaspoon kosher salt
• 1 1/2 cups whole milk,
• 3/4 cup unsalted butter,
• 1 teaspoon pure vanilla extract
• 3 tablespoons turbinado sugar or granulated sugar,