Broccoli Celery Soup

Rinse the vegetables. Cut the broccoli into small florets and the celery into 1 cm slices.

Rinse, peel and cube the potatoes, onion and celery root.

Blanch the broccoli and celery in boiling salt water for 6-8 minutes. Drain, catching the water. Rinse the vegetables in cold water and drain. 

In a saucepan, melt the butter. Sweat the onion until translucent. Add the diced vegetables and saute briefly. Pour in the water used to cook the vegetables. Season with salt and pepper. Simmer over medium heat for about 15 minutes.