One of my very favorites. I use 2:1 whiskey to vermouth. The cherry syrup makes a noticeable difference. I happen to think Fabbri Amarena cherries are just as good as Luxardo, and as a bonus for this drink if you make it often, there's more syrup in the jar. My favorite whiskey is Angel's Envy, but I will use whatever bourbon, rye, or Irish is handy. My favorite vermouth is Carpano Antico, but likewise I'm pretty happy with whatever's available. I also prefer Fee Bros. Old Fashion Aromatic bitters to Angostura, but again, I use what's on hand.