Carciofi con i piselli

• juice of 1 lemon
• 4 artichokes
• 1 small white onion

Fill a bowl with water and add the lemon juice. One at a time, trim the artichokes, including their stems. Cut each artichoke in half lengthwise and remove and discard any choke. Cut each half into two wedges. Slice the stems. Put all the artichoke pieces in the lemon water.

Chop together finely the onion and prosciutto. Put in a pan with the lard and