It's nice to be able to eat a gluten-free burger in Alcorcón! I came with a friend, she ordered a normal one that had ear and she loved it, I ordered a gluten-free one that had egg, although the bread would be tastier if it were baked, since gluten-free bread falls apart very easily, the meat was impressive but it is very small for the bread (as a tip, you could flatten the meat a little so that it covers more, or have the waiter notify you so you can order more meat), I find a small slice of bacon scarce, but it is crispy. Anyway, it's nice to be able to eat one without gluten!