Probably one of the ‘hardest’ cocktail drink, if not the only bar drink you’d actually sweat on finding is the Brooklyn. Why? Consider the ingredients..
Rye Whiskey. Dry Vermouth. Amer Picon. Maraschino Liqueur.
Would it still be a Brooklyn then? Of course, though the taste could vary depending on the kind of whiskey and vermouth you use. As for the Maraschino, try the Luxardo which is rather sweet to make up for the dryness in vermouth.
Just take note, Brooklyn is stirred not shaken. And if you prolong it, you’d have more than something that’s not only cold. Ice melts, remember?!
Till next time.. Enjoy!