Place the quartered strawberries, sugar and lemon zest in a pan and brig to the boil. Cook until the strawberries break down and begin to form a jam like sauce. This should take between 10 and 15 minutes. Once cooked leave on the side to cool.

Combine the mascarpone, sugar, lemon juice and vanilla essence in a bowl and mix. In a separate bowl with an electric mixer, whisk the cream until the cream forms soft peaks. Add the mascarpone mix to the whipped cream slowly to prevent knocking all the air out.