Pickled Red Onions

Ingredients (for 16 servings)

• 2 whole — medium red onions, thinly sliced
• 1 cup — boiling water
• 1 whole — ¼ cup white vinegar
• 1 whole — ¼ cup apple cider vinegar
• 2 tsp — agave syrup
• 1 tsp — coarse sea salt