01 -
Preheat the oven to 375°F to ensure even baking of the layered ingredients.
02 -
Boil the peeled and sliced sweet potatoes in a large pot until tender, approximately 10 to 15 minutes.
03 -
Drain the sweet potatoes and arrange half of them evenly in a greased baking dish.
04 -
Distribute half of the fresh cranberries evenly over the sweet potato layer.
05 -
Combine heavy cream, brown sugar, cinnamon, salt, and black pepper in a bowl until well blended.
06 -
Pour half of the cream mixture evenly over the sweet potato and cranberry layers.
07 -
Layer the remaining sweet potatoes and cranberries, then pour the remaining cream mixture on top.
08 -
Sprinkle shredded Gruyère cheese evenly over the top, followed by a layer of breadcrumbs to form a crisp crust.
09 -
Bake in the preheated oven for 30 to 35 minutes or until the topping is golden brown and the dish is bubbling.
10 -
Allow the dish to cool for several minutes to set the layers before serving.