This blueberry cobbler is a quick summer dessert and an excellent way to showcase fresh, bursting blueberries under a pillowy crust. Everything can be mixed and headed to the oven within 10 minutes. Easy Blueberry Cobbler Active Time: 10 minutes Total Time: 1 hour Serves 12 For the Filling 6 cups fresh blueberries 1 cup sugar 2 teaspoons lemon zest 1 tablespoon lemon juice 2 tablespoons cornstarch 1/4 teaspoon salt For the Topping 1 1/4 cups whole-wheat pastry flour 6 tablespoons sugar 1 1/2 teaspoons baking powder 1/4 teaspoon salt 1/4 teaspoon ground cinnamon 6 tablespoons cold unsalted butter, cubed 1 large egg 1 teaspoon vanilla extract To prepare filling: Preheat oven to 375 degrees F. Coat a 13-by-9-inch glass baking dish with cooking spray. Combine blueberries, sugar, lemon zest, lemon juice, cornstarch, and salt in a medium bowl; toss until the berries are coated. Transfer to the prepared baking …