Sweet Potato Pie with Parma Ham and Robiola Cheese. Sweet Potato Pie with Parma Ham and Robiola Cheese: It seems that spring has sprung early this year, and during those warmer days, why not soak up some glorious sunshine with an outdoor lunch or al fresco dining. Parma Ham – 100% natural with no added ingredients – is the perfect product to pair with an array of foods for a fresh and flavourful taste. This recipe for sweet potato pie with Parma Ham and Robiola cheese is the perfect dish to celebrate the arrival of spring. Enjoy it in the sunshine or make it for an evening of entertaining. This recipe serves 8 - 9 people. Ingredients: For The Crust: 180g Ground rusk 70g Butter (melted) For The Stuffing: 50g Parma Ham 700g Sweet potatoes 300g Robiola cheese 30g Cream or milk 2 tsp Corn starch 2 Eggs Extra virgin olive oil Salt Pepper Additional Ingredients: 100g Parma Ham Rosemary sprigs Method: Peel the sweet potatoes and cut them into sli