1 oz of Bourbon
1 oz of Averna (or Amaro)
1/2 oz of Maple Syrup
3 dash of bitters
1 wedge of orange
3 oz of Stout (or dark beer)
Combine first four ingredients in shaker with ice. Squeeze orange wedge into drink and discard. Shake. Add Guinness and mix by pouring from top to bottom glass of shaker. Strain into cocktail glass.