My mother in law made one of these for me, using oil. All the oil was sucked up into the burger, and the first bite almost made me blow chunks. She stood there smiling at me (she spoke no English) while I tried to gag it down, all the while smiling back. She eventually stepped out of the kitchen, and I quickly tried giving it to the dog. He would have none of it. So off it went to the garbage, covered over with various detritus.