Finally bought immersion blender (than you Poland for making it) and made a cream soup with cheese.

Potatoes and turnip (near 50-50) were main ingredients for mass, then some carrots and celery for taste and colour, and one middle-sized onion fried with butter. Boiled it until I've became tired, then put shredded brick of cheddar in and used blender to mix everything into single mass right in the pot. Some cheese was put after to make soup more aesthetic. I've also thought that putting some chopped vegetables on top may be good, but laziness stopped me.

It was pretty good, although next time I'll put less celery, it is too tasteful.