Wash jalapeños, remove stems, and slice. Set aside.
Ingredients
1 cuppure maple syrup
1 cupsugar
3 cupsapple cider vinegar, 5% acidity
1.5 cupswater
3 tspsalt
2 tspmustard seeds
2 tspblack peppercorns
Step 2
Combine and simmer for 5 minutes
Step 3
Add jalapenos and onions simmer 5 minutes.
Step 4
Ladle into sterilized jars wipe lid rims and apply lids to finger tight.
Step 5
Place jars almost submerged in water boil 15 minutes. Turn off heat and remove lids. Let cool in water for 5 minutes. Remove from water tighten lids and leave 12-24 hours check lid seals have popped.
Notes
Wear gloves when handling jalapeños to avoid irritation.