Layer jalapeno, onion slices, garlic and sweet pepper into a clean jar with a lid, like an extra large mason jar, or divide into 2 jars. Heat vinegar, water, salt, peppercorns and oregano in a large pot and bring to a boil. If you want the carrots and cauliflower to be a bit on the softer side, once the brine is almost boiling, add carrots and cauliflower to brine and return to a boil, then remove from heat.

Add the vegetables to the jar and carefully pour the hot brine over. You want the brine to cover the vegetables. If you’ve added more veggies and the brine doesn’t completely cover them, simply heat up equal parts vinegar and water, enough to cover. Top with a handful of fresh cilantro, allow to cool. Cover and refrigerate.

The next day you can remove the cilantro as it will start to discolor after a few days and won’t look very appealing if left too long. You can also leave out the cilantro if there are haters in your family! Pickled vegetables are ready to eat in one day, and will continue to absorb the flavor of the pickling mixture, and can be kept refrigerated for a few months.