Mango Jam
Submitted by donnylau
Mango jam: a sunny tropical preserve made with fresh mango pulp, lemon juice, and powdered pectin. Sweet, chunky, and ready to brighten toast through the whole off-season.
YIELD
6 1/2 cupsPREP
15 minCOOK
45 minREADY
1 hrsA jar of homemade mango jam on toast in February is a small act of time travel back to peak summer. This version keeps things simple: mango pulp mashed (not pureed) to preserve texture, cooked hard with lemon juice, pectin, and sugar in a two-minute rolling boil, then sealed into half-pint jars for shelf-stable storage.
The not-pureeing instruction matters. A proper jam wants fruit texture, visible chunks that spread on bread and sit up in the jar. Puree it and you end up with something closer to fruit butter.
Temperature and timing do the real work here. A “rolling boil that cannot be stirred down” is the specific description, meaning bubbles keep rising vigorously even as you stir. That’s when you add the sugar, and exactly two minutes of boiling after that activates the pectin and sets the jam.
Skim foam aggressively before jarring, foam-capped jam looks cloudy and amateurish.
A 10-minute boiling water bath at the end is what makes this shelf-stable, skip the processing and you’ve got refrigerator jam that keeps a few weeks instead of a year.
Kitchen Tips
- Use ripe-but-firm mangoes, overripe fruit turns stringy and makes for a watery set
- Pit and peel in a wide bowl to catch all the juice, every drop counts
- Test set by dripping a spoonful on a cold plate, it should wrinkle when pushed with your finger
- Always use new lids for canning, reused lids don’t seal reliably
Variations
- Add a split vanilla bean during the boil for creamy tropical depth
- Swap half the mango for ripe peaches for a stone-fruit blend
- Stir in a knob of grated fresh ginger and a pinch of chili flakes for a spicy-sweet condiment
Ingredients
Directions
Wash fruit, peel, seed and cut in cubes.
Mash with a potato masher or run through a food processor or blender - try NOT to puree.
In a 10 qt pan, mix fruit, lemon juice and pectin.
Place over high heat; stirring constantly, bring to a rolling boil that cannot be stirred down.
Still stirring, add sugar.
Return to a boil that cannot be stirred down, then boil for exactly 2 minutes.
Remove from heat; skim off foam.
Ladle hot jam into prepared half-pint jars.
Wipe rims clean. Place lids on jars and firmly screw on rings.
Process in boiling water bath for ten minutes.
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