Preheat the oven to 200 °C / 400 °F.

Clean the sweet potatoes, dab dry with a towel, peel it and slice it evenly in 3 inch length and 1/4th inch thickness.

Add the sliced sweet potatoes, oil, dried oregano, red chilli flakes, black pepper powder and salt in a mixing bowl. Mix it nicely so that oil and spices coats nicely on the sliced potatoes.

Spread these sliced potatoes on a non-stick baking tray.

Place it in the oven and bake at same temperature for 20-25 mins. Turn once with a spatula during baking (after 10 mins) and keep an eye on them for the last 10 minutes to ensure they don’t overcook.

Serve them with your favorite dip or tomato ketchup.