Blackberry Cobbler Recipe {Biscuity Cobbler Topping}

Ingredients

• 4 cups blackberries, rinsed clean
• 1/2 cup white granulated sugar (less or more to taste, depends on how sweet the berries are and how sweet you would like your cobbler to be)
• 1 teaspoon lemon zest
• 1 tablespoon lemon juice
• 1/4 teaspoon cinnamon
• 1 1/2 tablespoons cornstarch (or instant tapioca)
• 1 cup all-purpose flour
• 3 tablespoons sugar
• 1 1/2 teaspoon baking powder
• 1/4 teaspoon salt
• 4 tablespoons unsalted butter
• 1/4 cup milk
• 1 large egg, lightly beaten