Step 1

Start by peeling and chopping sweet potatoes. Place in a pot and cover with water. Bring to boil over medium heat and cook until potatoes are soft. Drain well (see note).

Step 2

Preheat oven to 375 degrees F. Butter a 2-quart casserole dish and set aside.

Step 3

Place cooked potatoes in large mixing bowl. Add brown sugar, butter, spices, salt, vanilla and eggs and mash with potato masher or whip with hand mixer.

Step 4

Spread the mixture in prepared casserole dish. Top with 1/4 cup of brown sugar, sprinkling it evenly over the top.

Step 5

Layer marshmallows in a single layer on top.

Step 6

Bake casserole for 12 to 15 minutes OR until the marshmallows are golden and toasted and the sides are bubbling. I always place it under the broiler for just 2 minutes to toast the topping just a bit more. You have to watch it carefully so it won't burn.

Step 7

Cool casserole for at least 10 minutes before serving.