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Instructions:
- Zest the lemons first, then juice them, removing any seeds.
- In a saucepan, combine lemon juice, lemon zest, water, sugar, grated ginger, chili, turmeric if using, and salt.
- Bring the mixture to a gentle boil over medium heat, stirring until the sugar dissolves.
- Reduce the heat and simmer uncovered for 30 to 35 minutes, stirring occasionally, until thick and glossy.
- Stir in the apple cider vinegar during the last 5 minutes of cooking.
- Test the jam by spooning a small amount onto a cold plate; it should wrinkle slightly when pushed.
- Remove from heat and let cool. The jam will thicken further as it cools.
- Transfer to a clean jar and refrigerate for storage.
Variations
- Use orange or Meyer lemon in place of regular lemons for a sweeter profile.
- Add a pinch of crushed coriander seeds for subtle citrusy warmth.
- Increase chili flakes for a spicier finish.
- Replace part of the sugar with honey for a softer sweetness.
Tips
- Stir regularly to prevent sticking or scorching.
- Adjust chili to taste; the heat intensifies slightly as the jam rests.
- Jam thickens more once cooled, so avoid overcooking.
- This jam keeps well refrigerated for up to three weeks and makes an excellent edible gift.