1. Preheat oven to 450 degrees F.
2. Peel yucas with a vegetable peeler to remove waxy skin.*
3. Chop in half and then slice each half into fry-shapes.
4. Place sliced yucca into a large pot and fill with water.
5. Heat on stovetop until water comes to a boil. Let cook in boiling water for 8-10 minutes.
6. Strain yucca from water and rinse with cold water.
7. Place yucca in a large bowl and top with olive oil.
8. Sprinkle with chili powder, salt and pepper and lightly toss to coat.
9. Line onto a baking sheet (do not overcrowd) and bake for 15 minutes.
10. Remove from oven and flip.
11. Place back into oven and cook for another 15 minutes.
12. Serve warm.

*The inside of the yuca should be stark white. If there are black lines, discard and use another yuca.