Flan

• 100g (4oz) granulated sugar
• 1 tablespoon cold water

First of all, make the caramel by putting the granulated sugar in a small heavy-based saucepan with the cold water and the lemon juice. Heat gently, waiting for the sugar to caramelise, shaking the pan carefully from time to time so that you get the sugar to caramelise evenly. It needs to be a really rich golden brown colour — watch that it doesn’t burn or else it will taste quite bitter. Turn