Rieslaner was bred from Riesling and Silvaner in 1921 - the 20s not just being the roaring twenties but also the period when mad German wine scientists were crossing anything and everything shaped like a prolate spheroid. In the case of Rieslaner they were successful and created a late-ripening grape that tends to have very high acidity. If you don't let it ripen properly I reckon you can just use the wine for the next mad scientist's experiment, but with ripe grapes the acidity should be balanced - ideally by lots of sweetness, so it is a good thing that Rieslaner takes well to botrytis. These sweet wines can be stunning, and today we are looking at such a beauty.

Weingut Keller, Monsheimer Silberberg, Rieslaner Auslese, 2009

It's not a typo (my auto-correct feature suggests "Riesling" instead), I haven't had too much to drink (sadly), it's not a new marketing term (as you probably are not sure how to pronounce the full name of this beauty you may have figured this out on your own) --- Rieslaner is indeed yet another of those German grape varieties you may have never heard of. You don't have to be too confused though, as Riesling was in fact one of its parents. I'd like to think Riesling was the father, whereas the Silvaner grape surely must be the mother, but I am probably falling for half a dozen sexist clichés here. However, one cliché is true: this German wine is sweet indeed. Very sweet. And delightful!

So let me introduce you to the child of my two favourite German grape varieties, a bright and fun kid that just doesn't like to travel much from home.