Candied Sweet Potatoes

2 T extra virgin olive oil
3 large sweet potatoes, peeled and cut into 1/4 slices
1 c water
1/2 c backed brown sugar or brown Splenda
Dash salt

Heat the oil in a well-seasoned large cast iron skillet over medium low heat. Add the sweet potatoes. Stir totether the water, sugar, and salt, and pour over potatoes. Cover and cook for about 20 minutes without stirring. Turn the potatoes over, cover and cook for about 15 minutes more, turning occasionally to coat each piece with syrup and taking care that the potatoes caramelize evenly. Continue to cook and turn potatoes in this manner until they are fork tender. Transfer to serving platter immediately.