Melt butter in a 13 x 9-inch baking dish.

Combine flour, 1 cup sugar, baking powder, and salt ; add milk, stirring just until dry ingredients are moistened. Pour bater over butter ( do not stir)

Bring remaining 1 cup sugar, peach slices,and lemon juice to a boil over high heat, stirring constantly; pourover batter (do not stir). Sprinkle with cinnamon, if desired

Bake at 375°F for 40 to 45 minutes or until golden brown. serve cobbler warm or cold