|Onion, red, sliced thin||4 cups|
|Vinegar, apple cider||1 cup|
In a large bowl, combine onion and salt. Let sit for 15-20 minutes until liquid starts to pool. Drain excess water.
Add sugar and toss. Let sit for an additional 15 minutes until sugar is dissolved.
Add vinegar to cover onions completely. Let sit for 1 hour up to 1 day. Keep pickles cold, below 41 degrees for up to 7 days.