Peel and slice the onion, fry in a pan with olive oil.
Add the chicken slices and brown them.
In a bowl, mix 1.5 dl of white wine with 3 spoons of mustard, salt and pepper. Pour the liquid over the chicken, add cream until the desired consistency is reached (about 1.5dl).
Simmer on low heat for 15 to 20 minutes.
It's ready!
The MagicTip: serve with rice or fresh tagliatelle, a real treat.