Paula Deen's Dutch Oven Peach Cobbler

Ingredients

• ground cinnamon
• 1/3 cup sugar
• 2 3/4 cups baking mix, divided
• 2 (16-oz) cans sliced peaches in heavy or light syrup or in fruit juice
• 1 pint fresh blueberries
• 2 1/4 cups baking mix
• 1/4 cup sugar
• 1/4 cup (1/2 stick) Butter, melted
• 1/2 cup milk
• cinnamon sugar (1/4 cup sugar combined with 2 teaspoons ground cinnamon; store in an empty spice shaker jar; shake well before each use)