Balsamic Parmesan Salad Dressing

3 tablespoons balsamic vinegar
1/3 cup olive oil
1 tablespoon mayonnaise
2 cloves garlic
1 teaspoon onion
1/4 teaspoon salt
1/4 teaspoon pepper
1 teaspoon Dijon
1 tablespoon parmasan cheese, grated


Combine all ingredients.