Potatoes 800gr. - butter 80gr. - salt - 250 ml. of milk.
Convert european unity of measure

Wash the potatoes under the water, skin and then boil them into a pot with abundant water and some salt. Drain and crush the potatoes (in alternative you can use a fork).
Put again the potatoes in the pot, and add the butter; mix all with a wood ladle.
Add salt and immediately after the milk (someone prefer to heat it first), mix continuosly until you'll obtain a soft mixture.
Serve warm and... good appetite!