Japanese Restaurant-Style Dressing

First, allow me to apologize for not having posted in such a long time.  With the holiday, I just let is slip.   I return today with this delicious salad dressing.  For Father's Day, the Veggie Dad requested Sesame Cold Noodle, which is his favorite meal.  As a side to the noodles I wanted to create a complimenting spinach salad.  I chose to make a salad dressing reminiscent of that which is often served at Japanese restaurants. 

1/4 cup grated onion

1/2 cup sesame oil

1/3 cup rice wine vinegar

2 tablespoons grated ginger

2 tablespoons ketchup

4 teaspoons soy sauce

4 teaspoons sugar

2 teaspoons lemon juice 

2 cloves mince garlic

1/4 teaspoon ground black pepper

1. Combine the above ingredients in a blender or food processor until well combined.