In some regions of Central Europe, salad dressing is made preferably with pumpkin seed oil, which has a strong characteristic nutty flavor and striking color properties. Indeed, in a bottle it appears red, but it looks green in a salad dressing or mixed with yoghurt.
As you can see from the picture, pumpkin oil can give your dressing a good look in the cruet and it changes its color when poured or in a thin layer on greens. It's a bit hard to find, and pricy, but no more than good olive oil. If your menu has been wandering around the Mediterranean olive groves a mite too long, this is a healthy break. The usual caveats for specialty oils apply; buy fresh, store dark and cool, and go with a real purveyor.
