Potatoes Au Gratin

 

Ingredients
  

3 pounds Sweet Potatoes

    3 pounds Baking Potatoes

      1 large clove Garlic

        1 generous tablespoon Sweet Butter

          3 cups Heavy Whipping Cream

            1 cup freshly grated great quality Swiss Cheese

              1 cup freshly grated aged Gouda

                1 cup grated Reggiano Parmesan

                  6 Egg Yolks

                    Salt & Pepper

                      1/4 teaspoon White Pepper

                        1/4 teaspoon ground Nutmeg

                          Instructions
                           

                          • Preheat Oven to 375°  
                          • Makes 8 to 10 Servings (lasagna style pan approximately 8” X 12”)
                          • Peel potatoes and using a mandolin into 1/16" slice.  Keeping the two type of potatoes separate, poach in boiling water until they are tender but not mushy (cooked 85%).  With a slotted spoon, transfer the potatoes onto a cookie sheet lined with paper towel to absorb excess water.
                          • Coat the bottom of a baking dish or a cookie sheet with a generous tablespoon of butter, or spray the bottom of the dish with a non-stick spray.  Heat the cream.  In a glass bowl, mix the eggs, salt and pepper and nutmeg; add the hot cream slowly to temper the eggs.  
                          • Line the bottom of the dish with a event layer of the sweet potatoes, top it with a thin and even layer of the parmesan, top it with an event layer of the regular potatoes, and pour some of the cream mixture to barely cover.  Top it with an even and thin layer of the Swiss cheese and continue to build the dish in any order you like, just be sure to add all the cheese and as much of the cream as you can.  Before placing in the oven be sure to press down the potatoes, so that the top is very wet with the cream.  Top with an even and thin layer of the parmesan.
                          • Cover with Chef Jean-Pierre’s Silicone Baking Mat and bake for at least 2 hours, or until a you can insert a knife in the center and feel that the potatoes are cooked all the way through.   At this point you can let them rest for about 1 hour before serving or you can let them cool at room temperature then refrigerate them to serve them the next day.  Just be sure to cut them in the portion size you would like to serve them before you reheat them in a preheat oven at 275˚ for about 15 to 20 minutes.
                          Posted in Recipes, Side Dishes

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