4 whole eggs
4 egg yolks
1/3 cup lemon juice
1/3 cup mandarin (tangerine) juice
Grated zest of one lemon
3/4 cup caster sugar
1 cup heavy cream

Lightly beat the eggs and add the sugar, juices, zest and cream. Taste and correct. It should still be quite tart.
Pour the mix into a buttered baking dish. Place the dish in a larger pan in a slow oven (160C) and add boiling water to the pan.
Bake until done, probably twenty minutes or so. It only needs to be set.
Serve with cream, maybe some raspberry coulis? A chocolate truffle perhaps? Or just as it is.