
Medallions are usually cut from the thinner end of a beef fillet, but using pork tenderloin is a much cheaper alternative.

500 grams pork tenderloin
400 ml chicken stock
150 grams chestnut mushroom
1 small onion
1 clove garlic
50 grams butter
50 grams plain flour
100 ml madeira or sherry
100 ml double cream
1 tbsp olive oil
1 tbsp balsamic vinegar
1 tsp wholegrain mustard
4 sprigs of fresh thymes
to taste salt and pepper