Bread + butter pickles

We’ve been making some version of these traditional pickles for generations in our family, and they will often be on the lunch table to liven up leftovers and sandwiches. Ideally, you’d use a mandolin to slice the onions as finely as possible, but just remember to always use the guard to protect your fingertips. Celery salt adds something savoury here, but a finer flaked sea salt would do the job if you don’t have it.