¼ cup red Zinfandel wine
3 tablespoons red wine vinegar
2 cloves garlic, minced
½ teaspoon salt
½ teaspoon freshly ground black pepper
¾ cup mayonnaise
In a food processor or blender, combine onions, wine, vinegar, garlic, salt and pepper. Process until onions and garlic are pureed. Add mayonnaise and blend until smooth. Refrigerate until very cold, and whisk dressing just before serving.