Boston Market Copycat Sweet Potato Casserole

INGREDIENTS

3 1/2

sweet potatoes, peeled and cut into 1” pieces

1/4 cup

Rolled oats, old fashioned

1/2 cup

All-purpose flour

1 1/8 cups

Brown sugar, packed light

1 1/4 tsp

Cinnamon, ground

1 tsp

Kosher salt

1/4 tsp

Nutmeg, ground

1 tbsp

Vanilla extract, pure

4 tbsp

Butter, unsalted

4 tbsp

Butter unsalted butter

1/2 cup

Heavy cream

2 cups

Marshmallows, mini