Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/2  cups          all-purpose flour
   1      cup           milk
   5                    eggs
     1/2  teaspoon      salt
   5      tablespoons   unsalted butter -- divided
                        === for the filling ===
  16                    shiitake mushrooms -- stems removed,
                        and cut in half
   1      ounce         dried porcini mushrooms -- soaked in
   1      cup           hot water -- for 10 minutes
   1      medium        spanish onion -- finely chopped
   3      ounces        extra-virgin olive oil
   2      ounces        white truffle oil
                        === for the sauce ===
   2      cups          milk
   3 1/2  tablespoons   unsalted butter
   3      tablespoons   flour
   1      pinch         salt

Preparation:

To make crespelle: Put flour in a large mixing bowl and slowly drizzle with milk, stirring constantly to avoid making lumps. Add eggs one at a time beating with a fork until a thin batter is formed. Add salt and let stand 20 minutes. Place a 6-inch non-stick pan over medium-low heat and heat one minute. Add 1 teaspoon of butter to hot pan and tilt to coat pan. Add about 1/3 cup of batter to pan, again tilting and turning to coat pan evenly and cook crepe until it is set on bottom about 30 seconds. Flip with spatula, cook another 30 seconds and remove to plate. Continue cooking crepes until batter is gone, stacking one on top of the other. Drain porcini mushrooms reserving the liquid and roughly chop. In a 12-inch sauté pan, sauté onion in olive oil until light brown over medium heat, approximately 5 to 7 minutes. Add shiitake and porcini and cook until brown and softened over medium heat, approximately 3 to 4 minutes. Add reserved water from the porcini mushrooms and cook until liquid is just moistening the mushrooms. Set aside to cool. To make bechamel: Heat the milk over low flame until it is steaming hot but not boiling. While milk is heating, melt the butter in a separate pan, also over low heat until it smells slightly nutty, but has not yet browned. Slowly whisk in the butter mixture into the hot milk until it is incorporated. Continue stirring with whisk until milk thickens to a thin pudding-like consistency. Season with salt and remove from heat. Preheat oven to 450 degrees. Butter a baking pan large enough to hold crespelle. Assembly: Stir the cooled mushroom mix, the truffle oil and 1/2 of the bechamel together in a mixing bowl until well mixed. Lay the crespelle on the counter and divide the mushroom mix evenly among them, about 2 to 3 tablespoons each. Fold the crespelle into a half-moon and again into a quarter-moon. Lay the crespelle into the buttered baking dish overlapping with the point toward the top and the thinner layers facing down. Dot the top of each crespelle with a scant teaspoon of the bechamel. Bake in oven 15 minutes until the tops are slightly crispy and the bechamel has melted over. Allow to stand 5 minutes outside oven and serve. Source: MOLTO MARIO with Mario Batali From the TV FOOD NETWORK - (Show # MB-5605)