Summer, winter, spring or fall, salad is always on our menus. So what about the dressings for the salad?   Most people buy their salad dressings at the supermarket in a bottle. There are literally hundreds of options at the grocery store. Some are on a shelf in an aisle and some in the refrigerator section. Of course, now there are some in an organic section. Many of the major brands of dressings available today were on the market as early as the 1920’s. It certainly is convenient….