Peel and thinly slice red onions into circles or half-moons, depending on your preference.
1 Red onion
Bring the water, vinegar, sugar and salt to a simmer to dissolve the sugar and salt.
1 cup vinegar, 1 cup water, ¼ cup Sugar, 1 tablespoon Salt
Place the sliced onions in a strainer and place the strainer over a bowl or in the sink. Pour boiling water over the onions, quickly blanching them, removing some of the bite of the onions and let them drain.
Add the onions and any additional flavorings such as peppercorn or garlic to the jar and pour the warm brine mixture over the onions.
The onions will be ready in about 30 minutes or when they have cooled, but are better after a few hours. Store in the refrigerator. They will keep for several weeks, but are best in the first week.
Additional flavorings for pickled onions
These ingredients are optional but make for delicious additions to any pickled onions. Customize your recipe to YOUR tastes and make this recipe your own. Here are my suggestions:
Bay leaf, fresh oregano, fresh rosemary or any other fresh herbs
What do pickled red onions taste like?Pickled red onions are a delightful combination of bite and sweet. The more sugar you add the sweeter they are. I love that pickled onions still have a crunch to them that is the perfect addition to grilled burgers, flank steak fajitas, any taco, or as part of a charcuterie and cheese board.What type of vinegar is best?I am using a white vinegar with 5% acidity for this recipe but apple cider vinegar, white wine vinegar or champagne vinegar could be used.