Coxinha is a popular food in Brazil consisting of chopped or shredded chicken meat, covered in dough, molded into a shape resembling a chicken leg, battered and fried.

The coxinha is based on dough made with wheat flour and chicken broth and optionally mashed potato, which is filled with shredded spiced chicken meat, or a whole chicken thigh. The filling consists of chicken, and onions, parsley and scallions, and occasionally tomato sauce, turmeric and catupiry cheese. The coxinha is coated in batter , then in bread crumbs or manioc flour and deep fried. It is shaped to roughly resemble a chicken leg. The dough used to coat the filling is generally prepared with the broth of the chicken, enhancing the flavor of the coating.

In the book Stories & Recipes, Nadir Cavazin says that the son of Isabel, Princess Imperial of Brazil (1846-1921) and Prince Gaston, Count of Eu, a child who lived in seclusion for having mental problems had a favorite dish, chicken, but only ate the thigh. One day, not having enough thigh, the cook decided to turn a whole chicken into thighs, shredding it and making the filling for a flour dough shaped into a drumstick. The child endorsed the results. Empress Teresa Cristina, when she was visiting him, could not resist the tasty delicacy; she liked it so much she requested that the master of the imperial kitchen learn how to prepare the snack.

More Info: en.wikipedia.org