1
Wash and dry produce.
Halve, peel, and thinly slice half the onion (whole onion for 4 servings). Quarter lemon.
In a small microwave-safe bowl, combine sliced onion, juice from half the lemon, and a pinch of salt. Cover with plastic wrap; microwave until softened, 30-40 seconds. Uncover and stir, then set aside to pickle.