3 tablespoons unsalted butter, cut into small pieces
Heat oven to 350 degrees F.
Stir together peaches and 1 tablespoon flour until combined. Place in a small baking dish.
In a large bowl, stir together 1/2 cup flour, brown sugar, baking powder, cinnamon and salt. Knead in butter, using fingertips, until well incorporated and mealy. Sprinkle mixture on top of peaches. Bake 35 minutes or until golden brown.