This is a tangy, fresh-tasting Ranch-style dressing with plenty of Parmesan cheese.
Place onion and garlic in a blender container or mini food processor. Cover and process until finely chopped. (The blender will only coarsely chop the onions and garlic, but will chop them further when the remaining ingredients are added.) Add mayonnaise, Parmesan, and rice vinegar; blend until smooth.
Use as desired with salads, or as a dip for fresh vegetables, or a sauce with seafood. Refrigerate any remaining dressing for up to 1 week.
Total preparation and cook time: 10 minutes
Nutrition information per serving (2 tablespoons): 120 calories, 2 g protein, 2 g carbohydrate, 0 g dietary fiber, 12 g fat, 2.5 g saturated fat, 10 mg cholesterol, 290 mg sodium