- Peel the pumpkin, remove the seeds and cut into small pieces. 
- Peel the potatoes and cut them into small pieces. 
- Remove the kale leaves from the stem, wash and coarsely chop. 
- Wash the leek, peel the onion and cut everything into small cubes.  
- Peel the celery and carrots and also cut into small cubes. 
- In a large pot, put the vegetables with the spices.  
- Add as much water until everything is covered. 
- Cook the stew for 30 minutes. At the end, bind the green coal stew with potato flour. To do this, mix the potato flour beforehand in a cup with a little cold water and then stir it in quickly.