Arrange the rack in the middle of the oven, then preheat the fan-assisted oven to 210 °C / 410 °F or the conventional oven to 220 °C / 430 °F. Line a baking sheet with parchment paper.
prepare the potatoes
Clean and peel the potatoes. Cut into wedges and place them on the prepared baking sheet. Add the oil and spices (thyme, paprika powder, cayenne pepper, and black pepper). Toss to combine and spread the potatoes in a single layer.
roast and serve
Place the baking sheet with the potatoes in the preheated oven. Roast the potatoes for 25 - 30 minutes at 210 °C / 410 °F or in the conventional oven at 220 °C / 430 °F or until the potatoes are soft and roasted. Right before serving, season with salt. Serve with your favorite sauce.