Peach and Blueberry Pie

Ingredients

• 3 cups sliced fresh peaches (about 5 large peaches)
• 2 cups fresh blueberries
• 1 teaspoon fresh lemon juice
• 3/4 cup sugar
• 1/4 cup flour or 3 Tablespoons cornstarch (to thicken the juice)
• 1/2 teaspoon salt
• Sprinkle of cinnamon , optional
• 2 pie crusts
• 2 Tablespoons butter, cut into small cubes