Makes about ¾ cup brine (enough for 1 medium onion or 1 large cucumber)
This is a quick no-cook brine that you can use to make pickled cucumbers or onions, just what you want when you’re thinking sandwiches, salads or a picnic. The brine recipe is for a small amount — it’s enough to pickle one onion or English cucumber. You can multiply it as needed.
Working Ahead
You can refrigerate the onions tightly covered for about 1 week. The cucumbers will keep for no more than 3 days, since after that, they will soften in the brine.
To make the brine: Combine all the ingredients in a bowl or jar and stir until the sugar and salt dissolve.
To pickle the vegetables: If using an onion, cut it in half from top to bottom and then cut each half into thin half-moon slices. Rinse under cold water and pat dry. If using a cucumber, peel it or just scrub it, trim the ends, cut it lengthwise into quarters and cut each quarter into 1- to 2-inch-long chunks. Or cut the cucumber into rounds to make pickle chips.
Add the onion or cucumber to the brine, stirring the pieces around so that the liquid covers them. Let the slices or chunks pickle for at least 30 minutes before serving. If you’re not going to use the pickles now, pack them into a jar (if you haven’t already), cover and refrigerate.