50/50 white & cider vinegar, cup or two of each depending on batch size. Add quarter as much water to vinegar. Toss in some cumin powder or seeds, kosher salt, peppercorns, diced garlic, couple cups of white sugar.
Bring to boil. Taste.
Add sliced jalapenos, carrots, red onions. Bell peppers or cauliflower or other craziness if you so choose. Slow boil a few more minutes.