Celery and potato soup with porcini mushrooms

200 g

root celery

100 g

firm potatoes

75 g

porcini mushrooms

2 1/2 stalks

flat leaf parsley

1/2 stalk

rosemary

300 ml

vegetable broth

10 g

butter

25 ml

cream

salt, pepper

white wine dry

400 g

root celery

200 g

firm potatoes

150 g

porcini mushrooms

5 stalks

flat leaf parsley

1 stalk

rosemary

600 ml

vegetable broth

20 g

butter

50 ml

cream

salt, pepper

white wine dry

600 g

root celery

300 g

firm potatoes

225 g

porcini mushrooms

7 1/2 stalks

flat leaf parsley

1 1/2 stalks

rosemary

900 ml

vegetable broth

30 g

butter

75 ml

cream

salt, pepper

white wine dry

800 g

root celery

400 g

firm potatoes

300 g

porcini mushrooms

10 stalks

flat leaf parsley

2 stalks

rosemary

1200 ml

vegetable broth

40 g

butter

100 ml

cream

salt, pepper

white wine dry