The Rhubarb Patch from Prestonfield House is a delicious way to use up spare rhubarb in the kitchen
Prestonfield House, Edinburgh
Bartender: Lewis Robinson
Make the rhubarb syrup by adding the fruit to 300ml boiling water. Boil for 10 minutes. Discard the rhubarb stalks.
Dissolve the caster sugar into the boiled water, and then cool.
To make the cocktail, add the ingredients to a shaker, shake and strain. Garnish with raspberry purée hearts