Pineapple Freezer Jam

A jar of pineapple jam with a spoon in it.

Pineapple freezer jam is a fun and tropical twist on your every day jam. This bright, fresh jam is made on the stovetop and will keep in the freezer for up to a year. This recipe makes two 8-ounce jars of jam.

Prep Time 5

Cook Time 15

Servings servings

Author Heather

Ingredients

1 pineapple peeled and cored
¾ cup granulated sugar
½ cup water
2 tablespoons lemon juice
2 teaspoons cornstarch more as needed

Instructions

Using a box grater, grate pineapple into small pieces. Alternatively, chop into fine pieces with a knife.
In a saucepan over medium heat, add grated pineapple, granulated sugar, water, lemon juice, and cornstarch. Stir until sugar has dissolved. Bring to a simmer, then reduce heat to medium-low.
Simmer for 20 minutes, stirring occasionally, until mixture has reduced slightly. The jam should thickly coat the back of a spoon (and will continue to thicken as it cools).
Remove from heat and allow to cool before transferring to two 8-ounce jars. When filling jars, leave about 1 inch of space at the top - your jam will expand slightly when frozen. Cool jam completely before adding lids.
Store for up to 1 year in freezer or up to 3 weeks in the refrigerator.

Notes

Storage: Freezer jam is not shelf stable and needs to be stored in the refrigerator or freezer at all times. Jam will keep in the refrigerator for 3-4 weeks or in the freezer for up to a year.
Sugar substitutes: Sugar can be substituted with a sweetener alternative, but please consult your sweetener package for proper ratios (some are more concentrated than others).
Using a sugar substitute?: If using a sugar substitute, keep in mind that the sugar helps preserve the jam, so your sugar-free jam will not keep as long in the refrigerator.
Want to double or triple this recipe?: Your jam will take longer to cook and thicken because there are more ingredients in the pan. Be patient and keep cooking until the jam has thickened to your liking.

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