My first pickling and I gotta say, it’s the easiest: red onions
https://www.ethanchlebowski.com/cooking-techniques-recipes/pickled-onions-forever
One of the jars 🫙 I added toasted cumin 😋
It's pronounced ʁaʁyʁe. And written RaRuRe, or R3 for short. You can find more infos on this place by clicking there.