Add the cornflour and stir to combine. Pour into the pan along with the beans and tomato purée. Bring to a gentle simmer for 5 minutes. Add the peas and simmer over a low heat for another 5 minutes.

Podding peas is a Christmas tradition in our family. We sit at the kitchen table with our peas and bowls and off we pod. For a change, finish the dish with small pieces or shreds of lemon rind.