Pre-heat the oven to 160C Fan/180C/350F/Gas Mark 4 and grease and line a 2lb loaf tin
Mix together the butter (or baking spread) and caster sugar, ideally using an electric mixer, until light and fluffy
Add the eggs, and whisk in until smooth
Add the lemon, orange and lime zest and mix in. Keep the zested fruits as you can use their juice for the syrup
Whisk in the flour gently until fully combined
Pour the mixture into the loaf tin and bake for an hour, or until a skewer inserted in the centre comes out clean
While the cake is baking, make the Pimms syrup
Juice the lemon, lime and orange that you zested for the cake into the same bowl, and add 2 tbsp of the juice to a sauce pan along with the Pimms and caster sugar
Heat on a low heat until the sugar has dissolved then boil for 5 minutes, stirring frequently. Pour into a bowl and leave to cool
When the cake comes out of the oven, poke it all over with a thin skewer, then brush the syrup all over it. Leave the cake to cool fully in the tin
To decorate, whip up the double cream with the icing sugar and vanilla extract and pile it on top of the cake
Add fresh fruit of your choice, I recommend strawberries, orange slices, mint leaves and cucumber rolls. To create the cucumber rolls use a vegetable peeler to peel strips off a cucumber and roll them up
Serve immediately, store leftovers in the fridge and eat within 2 days