01 -
Cut your bell peppers into thin strips and slice the onions into half-moons. Toss them together in a big bowl to mix evenly.
02 -
In a medium pot, combine both vinegars with the sugar. Add the turmeric, mustard seeds, celery seeds, salt, black pepper, and red pepper flakes (if using).
03 -
Heat the pot over medium. Stir now and then until the sugar has completely dissolved and you can't see any grains.
04 -
Pour the hot liquid mixture over the veggies in the bowl. Stir everything to make sure the liquid coats all the pieces.
05 -
Leave the mixture until it cools to room temp. Once cooled, transfer it into jars or airtight storage containers.
06 -
Store the jars in your fridge for at least a day before enjoying. This rest gives the flavor time to fully come together.