I tried making these with a gluten-free flour blend in place of the AP flour, and they turned out more like cake or bread. I imagine that the baking powder would need to be adjusted when using rice flour blends, or that I shouldn't have mixed it so much. They weren't super-sweet either, and since I baked half the batch in a square pan and half the batch as cookies, I put some vegan vanilla frosting in between a layer of square cookies (inspired by the Cowvin Cookie (http://stickyfingersbakery.com/products-page/sweetsandeats/cowvin-cookies/) and they are much better that way!!