Set the oven at 220C / 430F with grill elements on
Cut celery root into thin strips
Lay them out over a baking sheet on a baking tray
Sprinkle a little rapeseed oil over and season with barbecue seasoning. It is important not to take too much oil, otherwise, the celery root will become soft
Bake in the oven for 20-30 min. Follow this closely take out when it has the consistency you want
It is smart to move the fries around once in a while, while frying