Poached chicken tonnato

Method

• Step 1
  Blend mayonnaise, tuna, lemon juice, capers and 2 tablespoons stock in a food processor until smooth. Transfer sauce to a bowl, then cover and chill until needed.
• Step 2
  Bring wine and remaining stock to the boil in a pan over high heat. Add chicken, reduce heat to low and simmer for 5 minutes. Turn off heat and stand with lid on for 10 minutes to finish cooking, then drain (you can keep liquid for another use).
• Step 3
  Meanwhile, discard white pith and flesh from preserved lemon, then finely chop rind. Mix with olives and parsley in a bowl.
• Step 4
  Thickly slice chicken and serve on the sauce, with lemon salsa and rocket.