Combine all ingredients and bring to a boil, reduce to a low simmer and simmer very slowly until onions are very soft and liquid is nearly gone. If liquid evaporates too quickly while cooking add a bit more water. Check seasoning and cool. If more spiciness is desired add a bit of Tabasco sauce.
Grill a half smoke sausage -- never boil -- or cook a hot dog and serve liberally with relish and whatever else you fell like dumping on top, the more the better.