This recipe from The Shack was provided to me back in the early 80's. It's supposed to be the original version and it sure tastes like it to me! Very peppery! Serve with pulled pork and your favorite cole slaw recipe.
Combine first four ingredients and set aside. In large saucepan, combine combine ketchup, vinegar, water and onion. Stir in dry mixture. Bring to a rolling boil, reduce heat and cook uncovered 1 1/4 hours, stirring every ten minutes.
The mixture will reduce to almost half, about 55 ounces. Pour into sterilized jars and let rest for a few days. When I make this, I just pour the mixture into the empty ketchup bottles and store in the refrigerator.