Preheat oven to 450°F. Optional: Line a baking sheet with parchment paper to prevent sticking.
Scrub sweet potatoes clean and pat dry. Cut in half, then cut each half into wedges (about 8 wedges per potato).
3 medium sweet potatoes
Add potatoes to a bowl and toss with olive oil. Mix together spices in a small bowl, then sprinkle half over the sweet potatoes. Use tongs to toss the potatoes, then add the remaining spices and toss again, until evenly coated.