• 1 red onion, thinly sliced
• 1 cup apple cider vinegar
• 2 tbsp sugar
• 1 tbsp kosher salt
• 2 cups water

1. Whisk vinegar and seasonings with water until fully dissolved.
2. Place onion slices in a container and add liquid until covered. 1 quart mason jars work perfectly for this.
3. Let sit for at least 1 hour, but it is best if left in the fridge overnight.

photo and recipe: foxvalleyfoodie.com