Pomegranate Apple Salad With Poppy Seed Dressing (Parve)

Ingredients (10)

• 3 tablespoons white wine vinegar, or unseasoned rice vinegar
• 6 tablespoons sugar
• 1/2 teaspoon kosher salt, or sea salt
• 1/2 teaspoon dry mustard, or prepared Dijon mustard
• 1/4 to 1/3 cup chopped onion, from about 1/2 small onion
• 1/2 cup canola oil, or other neutral-flavored oil such as grapeseed oil, or extra-virgin olive oil
• 1 3/4 teaspoons poppy seeds
• 1 large head lettuce, or 1 (5-ounce package) mixed baby lettuce, rinsed and spun dry
• 1 pomegranate, seeded
• 1 large green apple, cored and sliced or chopped