Watermelon Rind Preserves - cooking recipe

Ingredients

rind of 1 lemon
rind from 1 (5 lb.) watermelon
3/4 c. pickling lime
water
1 Tbsp. alum
1 1/2 lb. sugar
8 c. hot water
1 large can sliced pineapple, drained and chopped (optional)

Preparation

Remove green rind
and
red
pulp from watermelon rind. Cut rind (white
part)
into
even
one-inch
square
pieces. Combine lime in
water
to
cover
rind.
Let stand overnight. Rinse thoroughly.
Soak rind
in alum and water to cover for 2 hours. Rinse thoroughly.
Cover rind with cold water and boil until slightly tender
when
pierced
with fork (about 25 minutes). Melt sugar in
8
cups
of
hot water.
Place rind and drained, chopped pineapple
in sugar water and cook until rind is transparent.
(Add boiling water if syrup becomes too thick during cooking.) Pack in hot sterile jars and seal.