- Pour the ingredients into a cocktail shaker filled with ice.
- Shake well.
- Strain into a chilled cocktail glass.
How Strong is the Boston Sidecar?
There is a lot of liquor in the Boston Sidecar so it should be no surprise that this is not what we would consider a light cocktail. If made with 80-proof rum and brandy, this drink would have an alcohol content around 26% ABV (52 proof).