Poussin Casserole with Cucumber Salad

Old-fashioned roast chicken with cucumber salad and white sauce was always my father’s birthday dinner. So simple, and yet through all his 78 years, it was his favourite dish. I have lots of variations on that classic dish, as all my family love it. Here I have swapped a chicken for two poussins, but you can use chicken if you prefer. I mainly serve this casserole in the winter months as it is so delicious, comforting and cosy. Tarragon is a herb I adore, and the way it infuses in this dish