I was eating at a Mexican Eating Establishment and I asked for their hottest sauce they came with something that looked like coffee that had seeds in it, the only thing the guy was willing to tell me about his sauce is the peppers he used were Habanero's, before I asked him the question about what hot peppers he used. I put it liberally on my food taste was good and then the side of my face were I was chewing went numb, someone could have done orthodontic surgery and I wouldn't have felt it. It was hot. He said also it was a variation of a recipe that comes out of Yucatan Mexico. Any idea what it was?