SHOPPING LIST: Cooking Skills: Eggs 1, Chapter 6 (Omelettes) Eggs: the four recipes use 13 medium eggs, and the experiments use about 21 more, so buy 3 boxes of 10 if you do them all. Choose Lion-marked eggs. Simple French-style omelette (1 portion) [ ] 3 medium eggs [ ] 1 tbsp water [ ] 10 g butter [ ] Pinch of salt and white or black pepper [ ] 1 tsp snipped chives (optional) Cupboard check: salt and white or black pepper are probably already at home. Cheese omelette (1 portion) [ ] 3 medium eggs [ ] 1 tbsp water [ ] 1 tsp oil or 10 g butter [ ] 30 g mature Cheddar, grated [ ] Pinch of salt and pepper Cupboard check: salt and pepper are probably already at home. Mushroom and herb omelette (1 portion) [ ] 100 g mushrooms, sliced [ ] 1 tsp oil [ ] 1 tbsp chopped parsley or chives [ ] 3 medium eggs [ ] 1 tbsp water [ ] 10 g butter [ ] Pinch of salt and pepper Cupboard check: salt and pepper are probably already at home. Spanish-style potato omelette (tortilla) (2 portions) [ ] 300 g waxy potatoes, peeled and thinly sliced [ ] 1 small onion, thinly sliced [ ] 2 tbsp olive oil [ ] 4 medium eggs [ ] Pinch of salt and pepper Cupboard check: salt and pepper are probably already at home.