How to make
Slice the chicken breasts.
In a deep bowl, mix the mustard, apple cider vinegar, olive oil, black pepper, salt, wine vinegar and add the cut chicken steaks.
Mix everything well and place cling film over the bowl. Leave the meat in the marinade for 1 hour.
Fry it in a heated pan and cook on both sides over low, heat so that the meat does not dry out.
The juicy chicken fillet in the marinade is ready.