Daetwyler Sweet Potatoes

• 6 large sweet potatoes
• 1/2 cup butter
• 2 cups white sugar
• 1 teaspoon ground cinnamon
• 1 teaspoon ground nutmeg
• 1 tablespoon vanilla extract

Stick in a crock pot for 8 hours on low. Eat as is, or Dump in oven proof dish and add marshmellows.