Preheat the oven to 350°F (175°C)
Spread hazelnuts in a single layer on a baking sheet
Roast for 10 to 15 minutes, shaking the pan once or twice
Watch closely near the end to prevent burning
Remove from the oven when the skins are darkened and the nuts are fragrant
Let the hazelnuts cool for a few minutes
Rub the nuts in a clean kitchen towel to remove loose skins
Use immediately or store in an airtight container