2 teaspoons finely chopped onions |
2 teaspoons white vinegar |
1 1/4 cups mayonnaise |
1/4 teaspoon salt |
1/2 teaspoon garlic powder |
1/4 cup sour cream |
1 teaspoon lemon juice |
1/4 cup half-and-half |
1 teaspoon worcestershire sauce |
1 1/2 teaspoons ground black pepper |
2 -3 teaspoons cracked peppercorns |
1/4-1/2 cup freshly grated parmesan cheese |