There are also two ways you can go when french-frying your sweet potato. If you're trying to keep it light, after cutting your potato into strips, spread them onto a baking sheet and brush with olive oil. You can add salt and pepper or spice things up with some cajun seasoning. Bake the fries at 450 degrees Fahrenheit for about 25 minutes, flipping them halfway through the time. You can check with a fork to ensure their tenderness.
If you don't mind adding a few more calories and you really want a nice, crispy product, try frying them. After you cut your fries, soak the potatoes in ice water for about 15 minutes (the removes some starch from the potato, which helps to make it crunchy) and heat up about an inch of peanut oil in a pan. Dry the potatoes well and slowly add them to the oil when it reaches 350 degrees Fahrenheit. Fry for about 5 minutes, or until golden brown, then sprinkle with your favorite salty or sweet spices.