Elderflower, Cucumber and Lime Granita

• 3 cucumbers
• 3 very juicy limes
• 300 ml elderflower cordial<

Peel the cucumbers and cut them into short lengths. Put them in a food processor and blend to a pulp. Pour the pulp into a fine sieve set above a bowl and use a ladle to squeeze the juice from the pulp into the bowl - you should end up with around 450ml. Discard the pulp.

Squeeze the limes. Add the cordial and lime juice to the cucumber liquid and stir well. Try a little on a teaspoon a