Mushrooms Peasant-style

Description
In Romanian: Ciuperci taranesti.

Ingredients

 * 1 3/4 lbs/750 g mushrooms,
 * 1 onion,
 * 1 tablespoon butter,
 * 1 cup sour cream,
 * salt,
 * pepper

Directions

 * 1) Clean the mushrooms, wash well and slice.
 * 2) Scald with boiling water, drain and put in a pan with the finely chopped onion and a tablespoon of butter.
 * 3) Fry for a few minutes, then add sour cream.
 * 4) Add salt, pepper and bake for 1 hour.