Clean celery stalks (cut off top and bottom, pull off fibers) cut lengthways and cut into pieces approx. 1/2 cm long. Peel the potatoes and cut into roughly the same pieces.
Sweat the onion in the rapeseed oil in a saucepan, add the potatoes and celery and stir a few times. Deglaze with the broth and cook on a low flame until it is firm to the bite. Finally stir in 1 tablespoon of almond butter and let it boil a little. Season to taste with white pepper.