1. Preheat your oven to 400 degrees.
2. Peel 6 medium sized orange-colored yams. Chop them into 1 inch cubes.
3. Line 2 large cookie sheets with tin foil and lay the yams out evenly on them.
4. Drizzle 2 Tb of olive oil over each of the pans and toss the yams with your fingers making sure the oil is distributed evenly.
5. Into a small bowl combine 1/2 tsp thyme, 1/2 tsp garlic salt, 1/2 tsp chili powder, 1/2 tsp cumin, 1 tsp sugar, 1/4 tsp seasoned salt and 1/8 tsp cayenne pepper.
6. Sprinkle half of the seasoning mixture over each pan of yams and then toss them around a bit with your fingers, making sure the seasoning is evenly distributed.
7. Sprinkle a bit of salt and pepper over the top.
8. Toss the pans into the oven and allow the yams (sweet potatoes!) to roast for 30-40 minutes, or until they are soft on the inside and the outside gets a little bit charred. Don't let them burn, mind you. They just need to get a little bit dark on the outside (for maximum heavenly flavor, of course). Give them a taste and add more salt and pepper to your liking. Enjoy!