Combine all of the dressing ingredients in a small mixing bowl with tall sides, or a large tumbler cup/glass. Blend the ingredients well with a stick blender, then set aside. Slice the green cabbage thin (just under 1/4″) and put it in a large mixing bowl. You need about three cups. Slice the red cabbage just like the green and add it to the mixing bowl. You need about 1 1/2 cups. Add the sliced onion, cilantro, and the dressing to the bowl. Stir all of the ingredients well. Cover and refrigerate for at least 30 minutes. Serve along side/on top of your food of choice and enjoy! (Makes about 4 cups.)