Roughly chop the bread into small cubes. If the bread is too dry, soak it in milk first, and squeeze the excess liquid before creating the croquettes.
Mix the chopped bread with chopped parsley, garlic, eggs, and Grana Padano cheese. Do not add too much salt, as Grana Padano is already salty enough. Mix and knead well by hands until smooth. Create small balls. Traditionally they should not be larger than 3 cm.