In a medium saucepan, combine your sliced peaches with granulated sugar and salt. Cook over medium heat, stirring gently for about 5-7 minutes, until dissolved and fragrant.

Preheat your oven to 350°F (175°C). Melt 6 tablespoons of butter in a 9x13 inch dish as the oven heats.

In a large mixing bowl, whisk together flour, granulated sugar, baking powder, and salt. Stir in milk until just combined, then pour evenly over melted butter.

Spoon the prepared peach mixture over the batter, allowing the juices to flow on top. Optionally sprinkle ground cinnamon.

Bake in the oven for 38-40 minutes until the top is golden brown and filling is bubbling.

Let cool for a few minutes, serve warm either plain or with vanilla ice cream.