Creamy Dill Dressing

dan's brother mark graduated from highschool this past week and we had a big party for him on saturday. hopefully i'll get a picture of the party up soon. it was a lot of fun and we had a ton of food. one of my favorite things was this dressing that we used as a dip for veggies. it is really good and is also good on salads, potato salad, and spread on sandwiches.

...recipe from Bon Appétit magazine (i can't remember which issue)
1 1/4 cups mayonaise
1/2 cup sour cream
1/3 cup chopped fresh dill
1/4 cup parmesan cheese, grated
3 Tablespoons lemon juice
onion salt, to taste
3 cloves garlic,minced
2 teaspoons worcestershire