Unlike the rest of croquettes, ham in there to take some precautions. First is to use the remains of a good Iberian ham, those tajaditas not eat because they are dry and stuck to the bone, but the taste is so intense and concentrated, with a tiny amount, perfumaremos a whole perola. And secondly, they do not throw directly into the bechamel, but you have to chop well and give a boil in milk that we will use. So they rehydrate and release their flavor in milk and, consequently, to the bechamel.