Preheat the oven to 350 degrees.

Place the stick of butter in the bottom of a 9x9 square baking dish and put it in the oven for the butter to melt.

Meanwhile, whisk together the flour, baking powder, salt and sugars. Add the whole milk and stir until a smooth batter forms.

Remove the pan from the oven with the melted butter.

Pour the batter evenly into the pan. Then top the batter evenly with the peaches.

Bake for 40-45 minutes. Allow to cool in pan and serve topped with vanilla ice cream.