2–3 mild fresh green chillies, seeds removed, finely chopped
1 heaped tbsp chopped fresh coriander
1 garlic clove, finely crushed (optional)
2–3 tbsp English mustard
chutney, to serve
50g/2oz plain flour
1 tsp crushed black peppercorns
pinch salt
50g/2oz salted butter
100g/4oz Caerphilly or other mature cheese, grated
100g/4oz mature Cheddar, grated
25g/1oz Shropshire blue or other blue cheese, crumbled, or more to taste
3 free-range egg yolks
about 250ml/9fl oz beer or milk
6–8 thick slices bread