A most elegant sandwich

Truly, is there a lovelier sandwich than a fresh cucumber and watercress triangle? It's so simple, so tasty. Jack and I can eat them by the dozens.

I dare say I feel wildly successful so far today, having delivered enough food -beautiful food!- to a party to feed an army. And it's not even 11am. Oh how I wish I could return to bed, but c'est la vie!