Tasted at Fountainhead in Chicago, a great whiskey bar. Flaming Heart is a recurring series of Compass Box releases that features Caol Ila's peated whiskies prominently. In this respect, one can think of it as a much more expensive ($125+) Johnnie Walker Black Label, another Caol Ila-heavy blended scotch. I don't know that I'd pay that much for it, but the reasonable $16 I paid for a generous glass was just right. My first note right off the bat was Caol Ila/Ardbeg character, meaning a combination of ashy smoke and lemon-lime citrus. Complementing that punchy essence are dark caramel and then a complex mixture of creamy nut butters. Flaming Heart finishes with a long, lingering exhalation of smoke. I wouldn't have guessed a blend if I'd tasted this one blind, I would have thought that it's just a really good Islay single malt. And that's about the highest compliment that I can give a whisky.