Real Dover Sole in Champagne Beurre Blanc. It's an incomparable fish. Truly superb. No other sole variety tastes like it. A lot of imitations, but nothing else comes close.
Genuine Jamaican Blue Mountain coffee. Not the carp stuff you can sometimes find nowadays. 99% of the crop goes to Asian consumers who pay the huge premium for it. Long ago I described it to someone as "the only coffee that actually tastes as good as it smells"!
The old Pappy Van Winkle 21 yr old Reserve bourbon from the original Stitzel-Weller distillery stock. Hard to believe I used to buy it for $75/bottle and get it without any hassle. The new PVW 21 and 23 aren't even close to the old SW stock. I switched to Jefferson's 100% Straight Rye, aged in the same barrels. Much lighter in body, but that same long, smooth finish that is so distinctive and addictive.