Animelle d’Abbacchio refers to sweetbreads, the thymus gland and pancreas of an unweaned milk-fed spring lamb so beloved in Rome. In the picture you see them grilled, and they were very, very good.
If the thought of eating offal doesn’t make you retch, then this is where you should start. The flavor is quite mild and creamy, and was enhanced by the char of the grill—or by an acidic sauce, hence the lemon on the plaate. Breaded and fried is another popular presentation.