Place the raspberries and clove into your cocktail shaker or jug, and squash down with your muddler or the back of a spoon.
Add the tequila, Cointreau, lime juice, simple syrup and ice cube and shake or stir well to mix. Leave for a minute for the drink to chill slightly or just keep shaking/stirring for 20 seconds.
Strain into your cocktail glass.
Grate the chocolate generously all over.Or you could grate your chocolate on a saucer, place it in the fridge, then, using your fingers, sprinkle all over. Warm fingers means that chocolate will melt on your skin.
Serve with the 3 raspberries threaded onto a cocktail stick.
Simple Sugar Syrup (to be made hours ahead and chilled)
Place the water and sugar into a small pan and bring to a boil.
Simmer for 10 minutes on the lowest heat to allow the flavours to develop and the syrup to thicken.
Leave to cool, then place in the fridge.
Video
Notes
The total time does not take into account he time it takes to make the simple syrup, nor its chilling time.The amount of simple syrup here is enough to make 6-10 cocktails depending on how sweet you make the margarita.