Lots of people I know have their favorite recipe for sweet potato fries. Here is mine.
Chop up your sweet potato - 1 large one
Place in a bowl with a mixture of:
3 Tablespoons olive oil
3 teaspoons cumin
3 teaspoons coriander
1/2 teaspoon pepper
Bake at 425 for 15 minutes, flip each of those little guys over and bake 15 minutes more
Just know, they aren't going to be crispy, try to get them crispy and they will burn... promise!