Right now there are two trays of gingerbread cookies in the oven here in the den, so I think it's safe to say that gingerbread is a flavour that will always remind us of Christmas.
A lot of aromatic bitters have a strong ginger and cinnamon flavour, so it's only a small step from a classic Old Fashioned to a one with some additional ginger flavour.
To make this a Gingerbread Old Fashioned, we've replaced the sugar syrup with a gingerbread syrup. You can make your own, or given how popular it is in coffee at this time of year, you can also pick up a bottle of pre-made gingerbread syrup if this simple infusion sounds like too much effort!