Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     2/3  cup           dry vermouth
     1/4  cup           cornstarch
     1/4  cup           milk
   4      cups          heavy cream
                        salt to taste
                        white pepper to taste
   1 1/2  cups          Swiss cheese -- grated

Preparation:

1. Blend cornstarch and milk; reserve. 2. Put vermouth in same skillet that filling was cooked in; boil rapidly until vermouth is reduced to 2 tablespoons. 3. Remove from heat; stir in cornstarch and milk mixture. 4. Return skillet to low heat and add cream slowly, along with salt and pepper; cook several minutes until slightly thickened. 5. Stir in cheese and cook until melted and well-blended; correct seasoning.