01 -
Dice your pineapple into small chunks. Cut jalapeños into slices and mince the ginger.
02 -
Grab a sturdy pot and throw in your apple vinegar, water, white sugar, dark mustard seeds, red pepper flakes, and salt.
03 -
Heat up the brine until it bubbles and the sugar completely melts.
04 -
Drop the jalapeño slices and pineapple chunks into the hot brine.
05 -
Wait for it to bubble again, then turn down the heat and let it cook gently for 10 minutes.
06 -
Take a tiny sip and add more sugar if you want it sweeter.
07 -
Wait for everything to cool down to room temp before you put it in a clean container that seals tight.
08 -
Enjoy right away or stick it in the fridge for better flavor later on.