detroitdad
Royal Flush
With the addition of the Gran Marnier, you can probably scratch the simple syrup. I have a similar old fashioned recipe with Bulleit 10 and an apricot liqueur:
https://www.pokerchipforum.com/threads/time-for-a-cocktail.18121/post-1106390
That is what I expected to see. I prefer mine more bourbon forward