Sweet Potato Casserole

• 3 medium sweet potatoes
• half a stick of butter softened
• 1/2 c brown sugar
• 1/3 c granulated sugar
• 1/2 tsp cinnamon
• a shake of nutmeg
• large marshmallows
• pecan pieces or walnut pieces (optional)

Prick and boil your potatoes for about 40 to 50 minutes and check for doneness; usually if knife can be stuck through. Let them cool and peel. Preheat oven to 350. Put potatoes in 2 quart greased casserole dish and add all ingredients except marshmallows. Mash potatoes and ingredients real well; you can even use an electric mixer or hand mixer to make sure they're mixed real well. Heat for about 20 minutes. Put your oven up to 400 degrees and add marshmallows. Put marshmallows on top of the sweet potatoes and heat for about 5-10 minutes or until browning on top.