This is one of my favorite holiday recipes - rich, layered and completely delicious; sure to be a favorite at your Christmas Party - see the full article with other recipes at CITISCAPES MAGAZINE | https://www.citiscapes.com/eats-drinks

Sweet Potato and Parmesan Gratin

 2 sweet potatoes, peeled and sliced thin

2 russet potatoes, peeled and sliced thin

2 tbsp butter, room temperature

1 tsp salt

1 tsp ground pepper

1 tsp fresh thyme leaves

1.5 cup Parmesan cheese, grated

2 cups heavy cream

Technique 

Preheat the oven to 400 degrees.  Butter medium sized cast iron skillet or casserole dish.  Place sliced potatoes in a bowl and toss with salt, pepper, thyme, and half of the cheese.

Transfer potato mixture to the cast iron skillet and cover with cream.  Bake for 25 minutes, then top potatoes with remaining cheese, and continue to bake for another 20 minutes until potatoes and cheese are golden brown.  Allow dish to rest approximately 10 minutes before serving.