Here's how I did it (my almost-recipe):
Peel a sweet potato and cut it into fry-shaped pieces, just a bit bigger than McDonald's fries.
Toss with a dash of cayenne pepper, a dash of salt, and a few dashes of chili pepper.
Microwave for 1 minute 30 seconds. Stir. Microwave for another 1-3 minutes, until the fries are floppy.
Add a splash of olive oil and toss.
Lay 'em out on a cookie sheet. Bake at 400 degrees until crispy-ish, scalding fingers to flip them over once during baking.
Serve with chipotle ketchup, and all will be forgiven.
(We had these with vegan black eyed pea BBQ sandwiches and a side of garlic broccoli.)