Separated egg yolks can be kept in an airtight container in the fridge for a couple of days. If you wish to freeze them separately, mix them with either sugar (for use in sweet dishes: one ...
Whisk the egg yolks, sugar and dessert wine together in a large heatproof bowl until pale and fluffy. Set the bowl over a pan of barely simmering water and continue to whisk for 3-4 minutes ...