how to pickle onions

To pickle onions quickly at home, follow these simple steps:

1. Thinly slice red onions as thin as possible using a sharp knife or mandoline.
2. Place the sliced onions in a clean jar.
3. In a measuring cup, combine about 1/2 cup apple cider vinegar, 1 tablespoon sugar, 1 1/2 teaspoons salt, and 1 cup warm water. Stir to dissolve the sugar and salt.
4. Pour the pickling liquid over the onions so they are fully submerged.
5. Let the onions soak in the mixture for about 1 hour at room temperature, then cover and store them in the fridge.
6. The pickled onions can be eaten after an hour but will taste better after longer soaking and will keep for up to 3 weeks refrigerated.

This quick method uses a simple vinegar-sugar-salt brine and can be customized with other vinegars, sweeteners, or spices if desired. Red onions are preferred for their color and flavor but other types can be used as well.