I do: mince, 2 eggs, breadcrumbs, whatever herbs on hand, sweet chili sauce, bbq or tomato sauce, garlic, onion.... smosh it all together real good (I think this is the bit that makes them gooood, seriously get stuck into them with your hands till the mix is niiice and smooth - sometimes a little water helps to get it nice and mooshy) and sometimes I add grated veg if I can be bothered LOL. I don't do measurements with mine, I just keep adding stuff untill my mix feels right