This is probably my favourite coffee shop in London. Small and quaint with fantastic coffee, although always hard to get a seat at any time of the day. http://www.monmouthcoffee.co.uk/shops/covent-garden
Recipe For British Summertime Pimms makes enough for 4 servings. Adjust proportions as you please! 1. Mix 1 Part Pimm's No. 1with 3 parts chilled lemonade (Sprite). 2. Add roughly chopped mint leaves, cucumber, orange, and strawberry. Serve with ice!