Ruby French Dressing

1 cup olive oil

⅔ cup ketchup

½ cup white sugar

½ cup white vinegar

2 tablespoons finely chopped onion

1 tablespoon lemon juice

1 teaspoon dry mustard

1 teaspoon paprika

1 teaspoon salt

1 teaspoon ground black pepper

Place olive oil, ketchup, sugar, vinegar, onion, lemon juice, mustard, paprika, salt, and black pepper in a jar with a tight-fitting lid; cover and shake until well blended. Refrigerate for at least 3 hours. Shake again before serving.