As it happens, I have 1/2 a 500ml bottle of Tokaji Aszu 5 Puttonyos left in the fridge, opened a couple of months ago. The producer/exporter labeling is inscrutable to me, but it's not Monimpex. 1990 is a curious period wine-wise, as was presumably an anarchic time just after the fall of the Communist government but before the infusion of capital from the west into Hungarian viticulture. I'd guess it was probably made at some big old style co-op, because you can't overhaul winery ownership, grape acquisition and production techniques in that short a time. But maybe some farmers switched to own-production quickly.
Anyway, the wine was over-the-hill but still drinkable - oxidized raisin-pruney fruit, maybe with a bit of orange peel in the nose; med-full bodied, sweet, low acid and unctuous on the palate with a flavor somewhere between sweet Madeira and PX sherry. It hasn't changed a lot sitting in the fridge. Too cloying and tired by itself but I'm thinking it could be tasty in some kind of cake or pudding.
While we are in that neighborhood, has anyone had authentic Essencia, and if so what was it like?