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Add warm espresso to a cocktail shaker then add brown sugar and shake or stir until brown sugar is dissolved
Then add ice to fill the shaker half way.
Pour in remaining ingredients and shake vigorously for 30 seconds.
Divide between 2 coupe or martini glasses!
*optional to do a brown sugar rim!
*if you don't have fresh espresso, you can use a cold brew and just shake with the brown sugar until it dissolves.