Can be prepared in 45 minutes or less.

Ingredients

　　3 tablespoons Dijon-style mustard

　　3 tablespoons sour cream

　　1/4 teaspoon dried tarragon, crumbled

　　1/2 cup thinly sliced scallion

　　2 1/2 cups coarsely grated Swiss cheese (about 1/2 pound)

　　1/2 cup chopped walnuts, toasted lightly and cooled

　　crackers as an accompaniment

　　In a bowl whisk together the mustard, the sour cream, the tarragon, the scallion, and pepper to taste, add the Swiss cheese and the walnuts, and combine the mixture well. Serve the mixture with the crackers.