Parmesan-Peppercorn Ranch Dressing - cooking recipe

Ingredients

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

Preparation

Whisk well together all ingredients and chill for at least 24 hours before using.