They’ll be ready to eat in an hour or two and will keep for at least a month. As your stash inevitably becomes depleted (because you’re gonna want these puppies on EVERYTHING), you can very easily replenish your stores by pouring out your brining liquid and pulling out whatever onions you have left. Simply slice another onion, put it in the jar and sprinkle with salt. Cover and shake, then let rest 2-3 minutes. Add your remaining pickled onions on top (because FIFO), then pour the brining liquid back in. If your onions aren’t covered, simply add a bit more vinegar to the jar to cover them up. Voila!
Keyword Cheap, Easy, Fast, Gluten Free, Healthy, Vegan, Vegetarian