Croque madame

By Paul Ainsworth From Saturday Kitchen Ingredients For the Cornish rarebit 675g/1lb 8oz good-quality Cheddar, ideally 1-year-old Davidstow 150ml/5fl oz full-fat milk 30g/1oz plain flour 55g/2oz fresh white breadcrumbs 1 tbsp English mustard powder 2 free-range eggs 2 free-range egg yolks 1 tbsp Worcestershire sauce …