These onions make a perfect accompaniment to the beef tongue. The tartness cuts through the richness of the tongue. Make great tacos with a little shredded cabbage, lime wedges and good corn tortillas.
2 medium red onions, peeled and sliced very thin
½ cup water
½ cup vinegar (white, rice, or apple cider)
¼ cup sugar
2 tbsp. kosher salt
- In a pot, bring the water, vinegar, sugar and salt to a boil.
- When the mixture starts to boil, turn off the heat and add the onions.
- Allow to cool, then put in a mason jar and keep in the refrigerator.