Main alochol is Demerara syrup (one part demerara sugar, one part water)
We got famed New York bar The Dead Rabbit to share...
Fill an Irish Coffee glass with hot water and let stand for a few minutes to warm. Pour out the water and add the Demerara syrup, whiskey and coffee. Stir to combine and top with a layer of heavy cream the width of your thumb. Garnish with freshly grated nutmeg.