SHOPPING LIST: Cooking Skills: Knife Skills 1, Chapter 2 (Onions, Garlic and Alliums) Onions are cheap, so buy plenty (red and brown) to practise on. Leeks, spring onions and garlic as listed. Lion-marked eggs for the frittata. Quick pickled red onion (makes a small jar) [ ] 1 medium red onion [ ] 100 ml cider or white wine vinegar [ ] 100 ml water [ ] 1 tbsp sugar [ ] 1 tsp salt Garlic and herb dressing (about 100 ml) [ ] 2 garlic cloves [ ] ¼ tsp salt [ ] 1 lemon, juice (about 3 tbsp) [ ] 4 tbsp extra-virgin olive oil [ ] 2 tbsp finely chopped parsley [ ] 1 tsp Dijon mustard (optional) [ ] 1 pinch black pepper Simple onion soup with cheese toast (2 portions) [ ] 3 onions (about 450 g), halved and thinly sliced [ ] 1 tbsp olive oil [ ] 15 g butter [ ] 1 pinch salt [ ] 1 tsp thyme leaves [ ] 500 ml hot beef or vegetable stock [ ] 2 slices of bread [ ] 40 g Gruyère or Cheddar, grated Leek and spring onion frittata (2 portions) [ ] 1 medium leek, trimmed [ ] 3 spring onions [ ] 1 tsp olive oil [ ] 4 Lion-marked eggs [ ] 30 g Cheddar, grated [ ] 1 pinch salt and pepper For the experiments [ ] 4 more onions (some to chill) [ ] More garlic, bread to taste the dressing