Sweet Potato Planks

1 large or two small sweet potatoes or yams
2 T butter, melted
1/4 c dry roasted peanuts, chopped (Paula Deen uses honey-roasted peanuts, but I use regular ones)

Earlier in the day, boil the potato in a large pot of water for about 20 minutes. Drain and cool.
Preheat oven to 450˚. Peel cooled potato, and slice into 1/2-inch slices. Spray a baking sheet with butter-flavored cooking spray and place potato slices on baking sheet. Brush with melted butter and sprinkle with chopped peanuts. Bake 15-20 minutes. Serves 2