Combine the first 4 ingredients in a pot and place on the stove at medium heat until the sugar dissolves.
Once that happens, dump the cranberries into the pot along with the ginger (zested ginger will make a punchier syrup).
Let this come to a boil for roughly 4-5 minutes or until the cranberries have popped and soaked into the syrup. Turn off the heat and zest the lemon directly into the pot.
Strain with a fine mesh strainer into a lidded container. Throw away the caught pulp and ginger pieces. Then, set the syrup in the fridge or freezer to chill.
French-75 Cocktail
Add the first three ingredients to a shaker with ice.
Shake and strain into your preferred cocktail glass.
Top with sparkling wine.
Notes
Don't have fresh orange juice, but still want to make this cocktail? No problem! Make a traditional simple syrup for the base of the cranberry syrup. This means a 1:1 ratio of granulated sugar to water.
This recipe was originally made with Empress Gin for its color, as well as its citrus and floral notes. If you'd like to use a different gin, feel free!