Preheat oven to 450°F.
Line a sheet pan with parchment paper.
In a large bowl, toss cut potatoes with 2 tablespoons oil, salt and pepper.
Spread potatoes in a single layer on the sheet pan.
Bake potatoes for 30 minutes, until the potatoes are brown, tossing half way through.
Ten minutes before they are done, toss potatoes with sesame seeds and return to the oven to finish cooking.
Season with salt and pepper before serving.