Melt butter in a microwave-safe dish, pour into your baking dish.
In a medium bowl, mix together the flour, 1 cup of sugar, baking powder and salt, add milk and stir until mixed well.
Pour the mixture over the butter.
In a large pot, combine peaches, 1 cup sugar and lemon juice.
Stir constantly, until the peaches are soft and the sauce boils.
Mix in the cinnamon.
Pour the peaches and sauce on top of the batter in your baking dish, DO NOT STIR.
Bake for 45 minutes.
Serve with Vanilla Ice Cream.
Notes
Using canned peaches: Skip the additional sugar and lemon juice. Sprinkle the canned peaches with cinnamon and heat them on the stove before pouring them over the batter. Do not stir.