depends on what you are using it for. White vinegar is considered "light" in consistency and balsamic "heavy". Balsamic, if aged properly, can be almost syrup-like in consistency. So, it will depend...
In a mason jar with a tight lid. Add 1/2 cup good quality balsamic vinegar add 3/4 cup good quality canola oil 1/2 teaspoon salt 1 teaspoon dijon mustard Shake well