I just cracked open a 2.5 year old strong brown ale. And dang, gentlemen, I wish I could share it with you, it's aging so gracefully (unlike its brewer....). The nose is alcohol, malt, some stone fruit, I'd go with cherry. The malt is rich, dark chocolatey goodness, surprising since the beer isn't that dark. Full-bodied, some alcohol, slightly warming, The rich chocolate and stone fruit flavors come through, with a slight hint of pleasant oxidation, tart on the finish, sweet on the front.... And still enough bitterness in the finish to make you want the next sip. Here's the recipe:
https://www.brewersfriend.com/homebrew/recipe/view/288830/-voulez-vous-brown-ale
A warning, it was slightly disappointing at first. It almost has a trappist quality when aged.