Cinnamon and sugar sweet potatoes

1 large sweet potato-sliced
1 to 2 tablespoons butter
1 teaspoon of cinnamon
2 tablespoons Splenda

-Heat a cast iron over medium heat.
-Brush the sweet potatoes with butter on both sides and brown.
-While the sweet potatoes are cooking, combine the cinnamon and sugar. Feel free to add more cinnamon or Splenda.
-Once the potatoes are cooked to the consistency you like, remove and add the cinnamon and Splenda.
-Feel free to deep fry the potatoes. You will get a crispier potato. I am just trying to be a little healthy.