1.5 oz Bourbon, Scotch or Rye whiskey
1 sugar cube
2 dashes Angostura bitters
1 splash soda water

Place sugar cube in old fashioned (low tumbler) glass and saturate with bitter, add a dash of soda water. Muddle until dissolved. Fill the glass with ice cubes and add whiskey. Garnish with orange slice, lemon twist and two maraschino cherries.

Room 11 has a variation:

"When prepping a syrup of it, the bartenders burn the sugar to caramelize it and add extra molasses. This creates a dark, opaque cocktail with a depth of flavor. Iris added Maker’s Mark bourbon, Fee Brothers Bitters – and a peel of orange which took a bit of effort as she was working with one injured hand. The drink was rich and delightful and a perfect way to end the evening"