The broth is the foundation of a delicious hot pot. In a large pot, combine the chicken or vegetable broth, water, ginger slices, crushed garlic, soy sauce, and Shaoxing wine (if using). Bring the broth to a boil over medium-high heat, then reduce the heat and let it simmer for about 15-20 minutes to allow the flavors to meld together. Season with salt and pepper to taste.