Preheat and Melt the Butter
Place the butter directly in the cast iron skillet or 9 x 9 baking dish.
Slide the skillet into the preheated oven until the butter is melted. Remove and set aside.
Mix the Batter
In a mixing bowl, combine flour, sugar, and baking powder.
Stir in milk until just combined.
Add cinnamon or nutmeg if desired.
Assemble the Cobbler
Pour the batter over the melted butter in the skillet. Do not stir.
Spoon the peaches with their syrup evenly on top of the batter. Leave the layers as they are.
Bake Until Golden
Return the skillet to the oven.
Bake for 40–50 minutes, until the crust is golden brown and the edges are bubbling.
A toothpick inserted into the crust should come out clean.
Rest and Serve
Let the cobbler cool for 5–10 minutes before serving.
Enjoy warm with vanilla ice cream or whipped cream.