Combine sugar and water. Place ... a full rolling boil that cannot be stirred down. ... Add thawed concentrated orange-grapefruit juice and mix well. Yield: 3 to 4 half-pints.
Prepare jelly glasses. In large ... lemon juice and boil 1 minute. Remove kettle from ... in pectin and orange-grapefruit concentrate. Fill glasses and seal and store.
Prepare peel: Using sharp knife, ... water; bring to boil over high heat. Boil 1 ... is dissolved. Add grapefruit peel; return to boil. Reduce ... Makes about 1 pound.