Betty's Watermelon Pickles
Remove the green and pink portions of the watermelon rind after serving slices. Cut into inch square pieces. Cover with water and add a half cup of salt. Soak overnight. (Sorry, she does not give any quantities for rind or water. My Mom would use the rind of a whole watermelon and put in a pretty big container to soak.)
Drain. Add fresh water and cook until tender, about 20 minutes. Drain again and cook the rinds in the sweet pickle syrup until clear. Seal in sterilized jars.
Sweet Pickle Syrup
2 parts white sugar to 1 part vinegar. Have mixture come to a boil, stirring constantly. Boil 5 minutes. Put some stick cinnamon in the syrup when you start cooking it.
Sorry, this is the entire recipe. I think Southern women of a certain generation who cooked simply thought everyone would know the details! My Mom did note that one watermelon usually needed 5 cups of vinegar and 10 cups of sugar.