This classic teatime treat is seasoned with a dash of Worcestershire sauce, paprika for warmth and Fortnum’s magnificent English mustard. Inspired by the classic pairing of cheese and nuts on a cheeseboard, we’ve served this of walnut bread, which makes a tasty base for the rich saucy topping.

Heat the grill on a medium setting.
Melt the butter in a pan and add the flour. Stir together to make a paste and cook for 1-2 minutes. Slowly add the warm milk and stir together to blend. Bring to a similar and cook gently until thickened.
Stir in the cheese, Worcestershire sauce, paprika and mustard, then remove from the heat.
Toast the bread lightly on both sides under the grill, then divide the sauce among the slices of bread. Top with a little extra grated cheese.
Put under a hot grill and cook until golden and bubbling.

Heat the grill on a medium setting.
Melt the butter in a pan and add the flour. Stir together to make a paste and cook for 1-2 minutes. Slowly add the warm milk and stir together to blend. Bring to a similar and cook gently until thickened.
Stir in the cheese, Worcestershire sauce, paprika and mustard, then remove from the heat.
Toast the bread lightly on both sides under the grill, then divide the sauce among the slices of bread. Top with a little extra grated cheese.
Put under a hot grill and cook until golden and bubbling.