Ginger Salad Dressing

I hope this is as good as Nakato's in Springfield. I could eat it with a spoon.

This is from Top Secret Recipes Website:

Before your meal at the Benihana chain of hibachi grill restaurants you are served a side salad doused in this tangy, slightly sweet, fresh ginger dressing. When spooned over a simple iceberg lettuce salad this easy clone transforms your bowl of greens into a great start for any meal. Making the dressing is as simple as dumping the ingredients into a blender, whizzing it up, and popping it into the cooler to chill. I've seen many attempts to duplicate this coveted formula, but I think the original clone recipe presented here comes closer to the real thing than any other recipe floating around cyberspace.
	1/2 cup minced onion 1/2 cup peanut oil 1/3 cup rice vinegar 2 tablespoons water 2 tablespoons minced fresh ginger 2 tablespoons minced celery 2 tablespoons ketchup 4 teaspoons soy sauce 2 teaspoons sugar 2 teaspoons lemon juice 1/2 teaspoon minced garlic 1/2 teaspoon salt 1/4 teaspoon ground black pepper
	Combine all ingredients in a blender. Blend on high speed for about 30 seconds or until all of the ginger is pureed. Chill. Makes 1 3/4 cups.