1 green onion
400 gr cooked chicken meat (leftovers from chicken broth are great)
150 gr cured ham (jamon serrano or prosciutto work fine) - optional
three tablespoons all-purpose flour
milk (as needed)
olive oil
nutmeg
white pepper
salt

Mince the onion and, in a sauce pan, stir fry in approximately 4 tbsp of olive oil.

Meanwhile, mince the chicken and ham together in a food processor.

When the onion is tender (should not burn), add the meats and the flour, stirring well. When the flour has colored, add little by little the milk, stirring continuously with a wooden spoon.

Keep heat on medium-low and add enough milk so that the mix is just liquid (probably close to 1/2 liter). Add salt, white pepper and nutmeg to taste.

Keep working the paste with the spoon while it thickens, approximately 20 to 30 minutes, or until you can see the bottom of the pan while stirring.

Pour the paste on a plate or serving dish and allow to cool completely.

olive oil
1 egg
1 1/2 cups breadcrumbs 

Once the paste is cold, cut with a knife in even pieces. With the help of a spoon, take a portion of the paste, ligthly cover with breadcrumbs, work with your hands to give it cilindrical shape, cover with beaten egg and then again ith breadcrumbs.

The size of the croquettes depends on taste, but a “standard” croquette is approximately 2 inches long and 1 inch tall.

Heat about 1 finger of oil in a skillet (oil should be hot but not smoking) and evenly fry the croquettes until golden brown.