Sweet Potato Grautin

I brought this to Bunco and it is great for these cold months.

Ingredients:

3 large sweet potatos (yams) peeled and cut into 1/2 inch cubes
2 cups WHOLE milk
2 cups cheddar cheese
1/2 cup flour
5 Tbsp unsalted butter
1 onion chopped
1/2 tbsp dried rosemary
1 tsp salt
1/2 tsp pepper

preheat oven to 400
Melt butter in a large sauce pan- add onions and cook until soft- 8 minutes or so
Pull off of heat and add flour- stir until combined and whisk in milk, salt, pepper and rosemary.
Return to burner and stir constantly until it comes to a boil
remove it form heat and stir in the potatoes
Pour mixture in a 9x9 greased dish and cover with cheese
Place in oven and bake for 30 minutes or until the potatoes in the center are done.