1 tsp chives, chopped
½ tsp Dijon mustard
50²µ/1¾´Ç³ú plain flour
dash Worcestershire sauce
50²µ/1¾´Ç³ú unsalted butter
250g/9oz ²µ°ù³Ü²âè°ù±ð
100g/3½oz white crabmeat
1 baguette, sliced and toasted
250ml/9fl oz Welsh beer