Melt you chocolate in 30 second interval in a microwaveable bowl or over low heat in a sauce pan on the stove.Add the coffee and extract to the chocolate and mix well.Whip your heavy cream in a stand mixer if not all ready prepared.Pour your coffee chocolate mixture into the whipped cream and stir until combined well.Taste and decide if it's sweet enough, add sweetener if needed.Pipe into serving dishes, to with chocolate chips if desired.Refrigerate for about 30 minutes to thicken mousse.Enjoy!