Raspberry burk

Cocktail course on Saturday starting at 10am! All I wanted was a cup of coffee although by 11am already had enjoyed a couple of cocktails and some liqueurs! Raspberry Burk is my creation, vermouth/raspberry liqueur and sirup/chocolate spirit/bitter and lemon...warned me to only put a drop of bitter in my cocktail but it wouldn't come out so I shook the bottle and five drops went in...and it was horrible