Japanese Ginger Salad Dressing

Ingredients:
1/2 cup soy oil (I use canola oil or veg. oil)
1/4 cup soy sauce
1/3 cup chopped onion
1/4 cup chopped celery
3 tbs + 1 tsp rice wine vinegar
2 tbs grated gingeroot
2 tsp sugar
1 1/2 tsp lemon rind
1/2 tsp ketsup
1/4 tsp white pepper

Blend all ingredients in blender until smooth.
Store in tightly covered glass jar in refrigerator.
Lasts up to 1 week.