Although these pickled onions are tasty on their own, we also liked them on the Roast Pork Sandwiches. You can prepare them up to two days in advance.
Combine vinegar, sugar, and salt in a small saucepan; cook over medium-high heat until sugar dissolves, stirring frequently. Pour vinegar mixture over onion; let stand 1 hour, stirring occasionally. Chill. Drain before serving.
Very easy recipe & would definitely make it again. We added some cucumbers to it.