In a bowl, sift the flour, baking powder, baking soda and salt.
In a separate bowl, whisk together the melted butter, milk, honey, 2 tablespoons brown sugar, egg, and vanilla.
Mix the wet ingredients into the dry ingredients until just combined, and fold in the peaches.*
Pour batter into a greased and parchment lined 9 x 9 inch square or 9-inch round pan and top with thinly sliced peaches and sprinkle with remaining tablespoon of brown sugar. Bake 25 minutes or until a wooden pick inserted in the center comes out clean.
* you can substitute the peach with cubed pear, plum or nectarine