First off, happy early birthday!
That wine should be drinking pretty well now. If you can, I would set it upright ahead of time, more time is better, but with middle aged Barolo, I don’t think you need weeks.
I would double decant for sediment in the am, recork it and just pop the bottle and drink it over a few hours. A good option if you are uncertain of more air, is a couple three hours ahead of serving it, see if it is still really tight and if so adjust your plan. I doubt the wine will be shut down now and won’t need too much time to open over dinner if double decanted in the AM. You can just watch it evolve over the meal.
Two of my favorite pairings for middle aged Barolo are braised beef short ribs with either polenta or mashed potatoes, or a roasted chicken.
Also, on the real easy mode: some tajarin with porcini or truffle. (In) the summer, black truffles (correction: actually winter truffles from Australia) can be pretty good as well since we are not in white season yet. If you cannot find tajarin, Rare Wine sells some egg noodle tagliolini all’uovo that are a close enough subsititution. I use them all the time and it scratches the same itch as tajarin. Corrected: The only time we had this on my August birthday was with Australian black truffles.
On the short ribs, I’d consider adding a little rosemary. I usually don’t use much rosemary with Barolo, but the nettle type notes sometime in CF can work well with some subtle rosemary use. Don’t overdo the rosemary. Otherwise, just keep it simple, carrots, onion, Barbera (I like it more than nebbiolo for braising short ribs: better acidity and I like what the fruit does with reduction more than nebbiolo). A simple Langhe nebbiolo will work just fine. No crime in using an acidic tank fermented white either. Emulsify the carrots, drippings, etc, after cooking and pour it over or beside the meat and polenta/potatoes.
A relatively simple killer chicken option is to take a whole chicken, a metric ton of butter, thinly slice some black truffles and stuff them and the butter under the skin. Roast it hot and use the drippings over some fingerling potatoes. This dish, FWIW, is also one of my favorite NSG or Gevrey pairings.
Anyway, I hope this helps, and moreso, I hope it shows well.
Happy early Bday!
Corrected for inaccuracy in the truffle type. That’ll teach me to give information without consulting the head chef. Thanks for preventing me from perpetuation bad advice Mark.