Continuing on my citrus adventures for this winter, I present you with lime curd. Using the same base recipe as my Pink Grapefruit Curd in December, but obviously replacing the large pinky yellow orbs for smaller green ones. And more of them too - by a ratio of about 4. If you recall, I discussed in my pink grapefruit recipe the fact that there are recipes using both whole eggs and egg yolks for curd. In December, because of other, non-cooking related circumstances, I used whole eggs. This time though, I decided to really test the hypothesis, so I made two batches of lime curd, one using egg yolks, and the other using an equal number of whole eggs.
Both worked, but because of accidents of... shall we call it life? ... I had some light issues with both. The egg yolk version was interrupted about 6 times by phone calls, so a quiet, chill time that was perfect for it suddenly was not and there was a lot of stop-and-go cooking, involving bringing things back up to temperature, then walking away again etc. The second time, I thought I had picked a good time to make it and had everything prepped along with dinner prep. But then things became rather more complicated than anticipated with Little Bit, including just after adding two of the eggs, so I ended up with little bits of egg white solidifying in the curd. Not ideal! Whisked with the rest of the eggs as they were added though, it came out better than I had hoped.
200 g butter
6 limes, juiced and zested
5 eggs / 5 egg yolks
1) Over a bain-marie, combine the butter, sugar, lime juice and zest and heat gently until the butter has melted, Whisking to combine as it all heats up so that an emulsion is formed.
2) Add the egg 8 (whole or yolks) and whisk continuously over gently heat until the mixture thickens.
3) Meanwhile, sterilise clean jars in boiling water for 15 minutes. When the curd has thickened, spoon into jars, wipe the rim and cap tightly. Place upside down on a clean cloth until cool.
So first things first, both of these taste amazing! The egg yolk version thickened less than the other, despite taking a lot longer, but then, I am not sure if that was due to the interrupted nature of the cooking, or down to the yolks or something else. The other has those unfortunate tiny bits of egg white. Both taste equally rich and creamy and the zesty lime flavour comes through equally well in both. (In the centre picture above, I tried a little of each on one piece of bread, for real side by side taste testing). All in all, I stand by my statement from the introduction to my Pink Grapefruit Curd recipe saying that both work and it is up to you whether you want to use whole eggs or egg yolks. And it is especially right about now, after an experiment like this where both parts were interrupted and affected by life in general, this makes me wish even more that I were able to make use of a test kitchen...