2-3teaspoonscornstarchdepending on how juicy you like it
To prepare blueberry filling, combine all ingredients in a bowl to use in the cobbler recipe.
Preheat oven to 375 degrees. For cookie dough crust, mix flour, baking powder, and salt in a small bowl and then set aside.
Beat butter and sugar until fluffy on medium-high with an electric mixer. Beat in egg yolk and vanilla until mixed thoroughly. Stir in dry ingredients until just combined.
Place fruit mixture into an 8-inch square baking pan or 9-inch round deep-dish pie plate. Drop cookie dough topping evenly over the fruit mixture. Try to make sure the cookie dough isn't touching.
Bake until golden brown, 45-55 minutes. Place a piece of tin foil over the cobbler if cookie dough gets too brown before it's done baking. Serve warm—pairs well with vanilla ice cream or whipped cream.
This blueberry cobbler is best served warm—it pairs well with vanilla ice cream or whipped cream.Enjoy this Blueberry dessert with fresh berries, or frozen blueberries work great, too.Nutritional information is approximate and was calculated using a recipe nutrition label generator.★ Did you make this recipe? Don't forget to give it a star rating below!