Step 1

Butter 2 quart casserole dish. Set aside.

Step 2

Peel and dice sweet potatoes. Cook in a pot with water until soft.

Step 3

Preheat oven to 350 degrees F.

Step 4

Once potatoes are cooked, drain and mash. Add butter, brown sugar, vanilla, salt and eggs. Mix well. Using a whisk helps. Spread potato mixture in prepared casserole dish. Set aside.

Step 5

In another mixing bowl, mix together sugar, flour, salt and nuts. Add melted butter and stir with a fork, until it forms crumbly dough.

Step 6

Sprinkle the topping over the mashed potatoes.

Step 7

Bake casserole for 25 minutes. If desired, add mini marshmallows. Place dish back in the oven and bake until the marshmallows are toasted, about 3 to 5 minutes.

Step 8

Cool before serving.