Blueberry Cobbler

Name: Blueberry Cobbler
Ingredients: 1/2 cup sugar; 3 tablespoons cornstarch (can add more if you want less liquidy); ⅛ teaspoon salt; 6 cups approximately 2 lbs. blueberries, fresh or frozen and thawed; 1 teaspoon melted butter or butter alternative or coconut oil; 1 3/4 cups GF Jules All Purpose Gluten-free Flour; 2 tablespoons sugar; 1 tablespoon baking powder; 1/2 teaspoon salt; 1 cup full-fat canned coconut milk (plus 2 tablespoons for brushing top); 1-2 tablespoons turbinado sugar for topping