Strawberry Rhubarb Cobbler

Ingredients (12)

• 2 cups fresh rhubarb, small diced, approximately 1-inch
• 2 cups fresh strawberries, small diced, approximately 1-inch
• 2 tablespoons cornstarch
• 2 teaspoons vanilla extract
• 1/2 cup granulated sugar
• 2 tablespoons granulated sugar
• 1/2 teaspoon cinnamon
• 1 cup all-purpose flour
• 4 tablespoons unsalted butter, very cold and cut into small cubes
• 1 teaspoon baking powder
• 1/4 teaspoon salt
• 1/2 cup buttermilk, very cold