- 1 kg (2 lb) potatoes (peeled)
- 200 ml (7 fl oz) Crème fraîche or sour cream or cream
- 50 g (2 oz) butter
- 1 egg yolk
- 200 ml (7 fl oz) leek (chopped)
- 200 g (7 oz) cheddar cheese (grated)
- 500 g (1 lb) minced meat (lamb or beef)
- 2 tbsp Worcestershire sauce
- 1 tbsp soy sauce
- Some dashes Tabasco
- 1 egg
- 2 tbsp olive oil