Burnt sugar syrup is a type of [ingredient=simple-syrup simple syrup] where the sugar is taken to the point of caramelization before the water is added, resulting in a dark brown color and a slightly smoky, bitter flavor. 

Used in small amounts, burnt sugar syrup could be an interesting "oaky" note in cocktails, as it should mimic the flavor of toasted wood. 

Some popular cocktails containing Burnt sugar syrup

  • Volcanic Bramble — Bourbon, Amaro, Crème de mure, Lemon juice, Burnt sugar syrup
  • Viva La Frida — Mezcal, Triple sec, Grapefruit juice, Burnt sugar syrup, Orange Mint, Grapefruit peel
  • Earl Jam — Bourbon, Ramazzotti, Burnt sugar syrup, Orange