The answer is yes! You can omit any of the ingredients listed apart from the water, vinegar, salt, sugar, and of course, the cabbage. You can add other spices to the liquid to give different flavors. A great addition could be cloves or black peppercorns. If you like spicy, add a pinch of red pepper flakes. You could also think about doing a combination of different cabbages or even adding onions or other vegetables into the mix. For an additional touch of sweetness, grated apple is an excellent addition, too. It is a very flexible recipe.