Preheat the oven to 425 degrees Fahrenheit (220 degrees Celsius).

Spray a large baking dish with non-stick cooking spray to prevent sticking.

Wash the potatoes thoroughly and pat them dry.

Cut each potato lengthwise into 3/4-inch thick wedges.

In a sealable plastic bag, combine the olive oil, sesame seeds, ground cumin, garlic powder, salt, and pepper.

Add the potato wedges to the bag and seal it tightly.

Shake the bag vigorously until the potatoes are evenly coated with the seasoning mixture.

Arrange the seasoned potato wedges in a single layer on the prepared baking dish.

Bake in the preheated oven for 40 to 45 minutes, or until the potatoes are tender and golden brown, flipping them halfway through the cooking time for even browning.

Once cooked, remove the potato wedges from the oven and let them cool slightly before serving.