One of my favorite dishes is called "Frango ao Molho Pardo" in Brazil You Americans will cringe when you read that the "brown sauce" of the title is made with fresh blood (yup) from the chicken that has been mixed with vinegar! If you ever go to Brazil do try it! I guess I got used to eating it, because I was a child and had no idea what was in it. Now this is just a fake version of it. The required beer is actually "cerveja preta" (Malzbier is my favorite). I thnk the similar in the US would be what you call "imperial stout"; since I'm not a beer "connaisseuse" and can't buy my beloved Malzbier, I just use whatever beer my husband puts in the refrigerator!