Sweet Potato Oven Baked Fry

We normally use sweet Potato in vegetable (Poriyal) or just boil it. We used to have this almost every week at least once. But recently my kids are not eating it. So I almost stopped buying it. However I saw sweet potato recipe from internet and was showing to the kids ..They jumped on it (It is a surprise to me as both of them were not big fan of French Fries). So I wanted to give it a try. It came out well. Kids for now still hooked on to it...

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2 medium-sized sweet potatoes, rinsed and dried
2 Tablespoon Olive oil
2 teaspoon of Chillie powder
1 teaspoon salt
1 teaspoon garlic powder
1 teaspoon freshly-cracked black pepper
1/2 teaspoon. cumin

Preheat the oven to 450 degrees.
Carefully cut the potatoes into 1/4″ thin strips, or to your desired thickness and length.  Then place in a large bowl, and toss with the remaining ingredients (oil and spices) until potatoes are evenly coated.
Then spread out the potatoes evenly on a baking sheet prepared with parchment paper or silicone baking sheet.  (Try not to overcrowd the sheet, or have multiple layers of fries — you want them to be roasted, not steamed.)
Place in oven and cook for 20-25 minutes, turning the fries once or twice during that time to cook evenly.  (May take more or less time, depending on the size and thickness you cut the fries.)  
Remove once the edges slightly begin to brown and fries begin to crisp.