Great for a pre or post party snack!
In a small saucepan melt the butter and make a roux with the flour. Cook for a couple of minutes, stirring to prevent the roux from burning.
Stir in the warm beer by degrees, until you have a thick but smooth sauce.
Add the grated cheese and stir until melted. You should now have a thick paste.
Mix in the mustard and Worcestershire sauce and season well with black pepper.
Lightly toast and butter the bread, then pile up the cheesy mixture on each slice. Cook under a hot grill for a few minutes, until browned and bubbling.
Chopped cress makes a delicious & cheap garnish.
Please note: this recipe has been created and uploaded by a member of the Tesco Real Food online community. Tesco does not test customer recipes so cannot accept responsibility for the content, validate the results or answer queries regarding them.