Lemon curd is really convenient to have around... I use it in tarts, choux puffs, as a confiture, etc etc. So easy to prepare yet delicious. Here's the recipe:
Finely grated lemon zest from 2 large lemons
1/2 cup fresh lemon juice
2 large egg yolks, lightly beaten
3 large whole eggs, lightly beaten
125g unsalted butter, melted
3/4 cup granulated sugar
Mix everything together and whisk constantly over low heat till thick.