Mary Berry served up a tasty French croque monsieur toasted bread sandwich with Gruyere cheese and Dijon mustard on Mary Berry’s Simple Comforts.

The ingredients are: 50g butter, 4 slices white bread, 2 tbsp Dijon mustard, 4 thin slices smoked ham, 100g Gruyère cheese, coarsely grated, 15g plain flour, 150ml hot full-fat milk, pinch ground nutmeg, salt and freshly ground black pepper.

See recipes by Mary in her book titled: Mary Berry’s Simple Comforts available from Amazon now.