1. Stir together first 4 ingredients in a medium glass or nonmetallic bowl. Let stand 15 minutes.
2. Gradually stir in pectin; stir 3 minutes. Let stand 30 minutes.
3. Spoon mixture into clean (1/2-pt.) jars or other freezer containers, leaving 1/2-inch headspace. Seal, label, and freeze upright. Store in freezer up to 1 year. Thaw completely (about 1 day) in refrigerator before using. Refrigerate after thawing, and use within 3 weeks.
Note: We tested with Ball RealFruit Instant Pectin.