Mary Berry served up tasty cheesy nutters with mustard and unsalted cashew nuts on Mary at 90: A Lifetime of Cooking.

The ingredients are: 115g baking spread, at room temperature, 55g semolina, 75g self-raising flour, 75g Parmesan, finely grated, ½ tsp mustard powder, 2 tsp Dijon mustard and 24 cashew nuts.

See recipes by Mary in her book titled: Mary 90 available from Amazon now.