1) Peel the sweet potatoes and chop off the ends so your first slices are chip-sized.
2) Slice chips thinly using a mandoline.
3) Fry chips in batches in 350 degree oil. Be careful not to add to many chips at once or your oil might overflow. Fry until they are lightly browned and not bubbling, about 3-4 minutes.
4) Remove chips and let drain on a paper towel. After they drain for about 30 seconds, season the chips with a good pinch of the spice mixture.