Watermelon rind from 1/2 sm watermelon
1c dark corn syrup
1/4c distilled vinegar
3/4tsp crushed red pepper flakes
1/2 tsp liquid smoke
1/4tsp black pepper
1. For the pureed watermelon rind, cut off the green skin and about 1/2inch of the hard white part, keeping the part that is lighter red to white. This is the tender part of the rind. Stay away from the hard white bit just under the skin.
2.Put the rind in a food processor and puree for only about 10 seconds. Strain the liquid from the pulp and use 1 cup of the pulp, measured after straining.
3.Combine the pulp with the remaining ingredients in a saucepan over medium heat. Bring to the boil then reduced heat and simmer for about an hour of until desired thickness. (I took the lid off for a bout 20 minutes at the end to thicken it up)