With the help of a kitchen machine that can weigh and cook (e.g. thermomix=tmx) this recipe can be quickly made, but it's easy to follow should you be preparing everything manually and on stove (just more time consuming)
Dice celeriac, one carrot, onion or in blender e.g. a tmx: 6sec speed5
Sautee mix in heated oil or tmx: add oil and program varoma 4:30min speed spoon
Add diced (rinsed, not necessarily pealed) carrots and (rinsed, half-pealed) potatoes to sauteed mix
Add herbs, salt and pepper and water
Now let come to a boil, stir and let simmer with lid on for about 10/15 minutes or till potatoes done. In tmx: 20min 100C reverse speed spoon (if you used cold water 25min)
Length of time cooking potatoes will vary according to type you used and cube size which should depend on how big/small you like them best in a soup
Try and adjust salt/pepper to your taste
Serve with a bit of parsley and freshly ground pepper on top
