It's not hard to think of a pudding that can be made in advance. But mostly the advantage is simply that all the effort is upfront and early. The thing about this recipe is that you do it in advance - it's ice cream, so that stands to reason - but what you do in advance is negligible in terms of effort. You don't make a custard, and you don't have to keep whipping it out of the deep freeze to beat the crystals. No, you simply squeeze and stir.
On top of that cause for greater contentment, there is also the fact that this delicate pink ice cream tastes like fragrant, sherbety heaven.
Recipe posted by Nigella