Nona s Japanese Ume Dressing

½ cup vegetable oil

¼ cup chopped onion

¼ cup rice vinegar

1 tablespoon toasted sesame seeds

1 tablespoon minced fresh ginger root

1 tablespoon umeboshi, minced

1 ½ teaspoons lemon juice

1 teaspoon white sugar, or more to taste

1 teaspoon salt

ground black pepper to taste

Place the vegetable oil, onion, rice vinegar, sesame seeds, ginger, umeboshi, lemon juice, sugar, salt, and pepper into a blender. Cover, and puree until smooth, about 30 seconds.