This is from TOH. Its great because you can mix the dry ingredients and keep in a cool dry place in ziploc bags. All you have to do later is to add the ingredients for the other dressings and enjoy. I suggest refrigerating at least 24 hours before serving to allow the flavors to blend. The base mix yields 3 cups of mix. This divides into 4 portions to use at any point. Each portion makes 6 batches of salad dressing.