Crèmes brûlées au foie gras et tuiles aux noix
raw foie gras (250 g), • egg yolks, • heavy cream (about 200 ml), • milk (about 200 ml), • light brown sugar (about 40 g), • salt, • pepper • Optional: 1 1/2 tablespoons cognac (about 5 ml), I personally don't use it • For the tuiles: • shelled walnuts (100 g), • large egg white, • melted butter (about 50 g), •