1. Heat the water until boiling with the special fish bouillon cube.
2. In a small saucepan, melt the butter over low heat. Then add the squeezed lemon and stir vigorously for a few minutes until the sauce thickens. Add salt and pepper.
3. In a frying pan, with a drizzle of truffle olive oil, heated beforehand, brown the red mullet fillets for one minute on each side. Salt and pepper the red mullet fillets (red mullet fillets cook very quickly.)
4. Arrange the red mullet fillets on the plates and cover the fish with the lemon butter sauce served very hot.
Signorini TARTUFI Tip
You can accompany this fish dish with an asparagus risotto.