1 large red onion, thinly sliced (a mandoline works well here)
½ cup water
¼ cup white vinegar
¼ cup apple cider vinegar (or more white vinegar)
1 ½ Tbsp maple syrup or sugar
1 ½ tsp salt
Red pepper flakes for heat, optional
Instructions
Place sliced onions in a jar.
Combine remaining ingredients in a pot and bring to a boil. Pour brine over onions in the jar carefully. (Work on a sheet pan or in the sink to contain splashes of hot liquid.)
These pickled onions are ready to serve within minutes - or store in the fridge for 2 weeks. Pickled onions are a great topping for pulled beef!
Recipe by Between Carpools at https://betweencarpools.com/quick-pickles-pesach/