Spicy Peach Jalapeno Jam with Liquid Pectin

A vibrant, heat-kissed preserve balancing sweet peaches with bright jalapeno kick and tart lemon. This cooked jam uses liquid pectin for reliable set and butter to tame foam. Ideal for breakfast spreads, cheese boards, glazes for grilled meats, or gifts. The jalapeno heat builds subtly, making it versatile for both sweet and savory applications. Best served on toast, with brie, or as a condiment.
Ingredients
- 3 ½ lbs large peaches, sliced
- 3 medium jalapeno peppers, chopped
- 7 ½ cups sugar
- 1 pouch liquid pectinpowdered pectinfollow pectin package conversion, typically 2 tbsp powdered
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- ¼ cup lemon juice
- 1 tablespoon butter or margarine
Instructions
- 1
Slice peaches and chop jalapenos; add to large pot with lemon juice and sugar.
- 2
Heat on medium-low, stirring constantly from bottom until sugar melts, about 5-8 minutes.
- 3
Increase heat to medium and stir periodically until mixture boils.
- 4
Add butter when boiling begins to reduce foam.
- 5
Maintain rolling boil until peaches soften, about 20 minutes.
- 6
Stir in liquid pectin, return to full rolling boil.
- 7
Time 1 minute at boil, stirring down foam if needed.
- 8
Remove from heat, skim surface foam.
- 9
Fill hot sterilized jars leaving 1/4 inch headspace.
- 10
Process in hot water bath following pectin package directions for your region.
Tips
Stir from the bottom during sugar dissolution to prevent scorching. This step matters more than you'd think and prevents bitter flavors.
Remove seeds from jalapenos for less heat, keep them for more punch. Test one pepper's heat level before committing all three.
Use a candy thermometer if available; jam reaches 104-105C for proper gel without pectin reliance.
Good to Know
Store sealed jars at room temperature in a cool, dark place up to 1 year unopened. Once opened, refrigerate and use within 3-4 weeks.
Prepare jam up to 2 weeks before serving. Can be made in advance and stored sealed. Do not skip hot water bath processing for shelf stability.
Spread on toast, pair with cream cheese or brie, use as glaze for grilled chicken or pork, or serve alongside charcuterie. Room temperature or chilled.
Common Mistakes
Do not skip the bottom-stirring during sugar melting to avoid burned, bitter jam.
Do not omit the 1-minute boil after pectin addition to avoid soft set.
Do not process jars at temperatures below boiling to prevent spoilage.
Substitutions
Dairy-Free Swaps
General Alternatives
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FAQ
Can I use fresh pectin instead of liquid?
Yes. Powdered pectin requires different preparation; follow the pouch instructions for conversion ratio and timing, typically 1.5-2 tablespoons per batch.
What if my jam doesn't set properly?
Reprocess: combine jam and additional pectin, bring to rolling boil for 1 minute, then re-jar. Alternatively, use as syrup over yogurt or ice cream.
How long does sealed jam keep?
Properly processed and sealed jars last 1-2 years unopened in cool storage. After opening, refrigerate and consume within 3-4 weeks.