I saw some lemons on super special offer i.e. 3 for 39p (around 60c US) so I grabbed a couple of nets to make lemon curd with pao at the weekend.
We adapted this recipe from BBC food a little.
1 tablespoon of limoncello
3 eggs plus one egg yolk
Cut lemons in half and arrange in a bowl. Microwave on high for 1 minute. (This is a tip from the marvel that is Mary Berry to encourage the lemons to give a bit more juice.)
The alcohol will have burnt off by the time you need to add eggs after the butter, juice, zest and sugar have all melted together. Beat the eggs and egg yolk together and stir into the lemon mixture which remains over the bain marie.
Cook gently for around 10-20 minutes, stirring occasionally until it is thick enough to coat the back of a spoon. I know this is a vague timing but I realised that the design of my bain marie meant a lot of the steam was coming out of the pouring gaps on the side of my saucepan so I had to turn the heat up to compensate.