Step 1

Cut the onion in half and peel off the outer skin layer. Slice the onion thinly along the ridge lines you can see on the outside of the onion.

Step 2

Fill the slices tightly into a glass jar.

Step 3

In a small saucepan, stir together the red wine vinegar, water, maple syrup, salt, and oregano.

Step 4

Heat on medium low until the vinegar mixture comes to a gentle simmer. Then pour it over the sliced onions in the jar.

Step 5

Push down the onions with a spoon to keep them submerged in the vinegar. Let them cool to room temperature (about half an hour). Then the quick pickled onions are ready to enjoy.

Step 6

If not using right away, close the jar and store the onions in the fridge for 2-3 weeks.

Step 7

Enjoy the pickled onion on tacos, salads, and burgers or anything else that could benefit from crunchy sweet onions.