Pimm's Highball Smash

I wanted something light and clean that I could drink this afternoon without alcoholic after-effects, so I turned to a couple of new acquisitions.  First, my dear friends Matt and Michele generously gave me a soda siphon for no reason whatsoever.  That was awesome.  Second, I bought a couple of bottles of bitters from the Bitter Cube guys I met at Tales of the Cocktail.  I decided to combine these with some mint, sugar, and Pimm's No. 1 to make an afternoon drink.

2 oz Pimm's No. 1 liqueur
1/2 teaspoon demarara syrup
2 dashes Bitter Cube lemon tree bitters
10 mint leaves
soda water

Muddle mint with syrup; add Pimm's and bitters.  Stir on ice, and strain into a highball glass filled with ice.  Top off with soda water.  Garnish with a sprig of mint.

Very light, very refreshing.  The mint really came through on the nose and the sip, and the Pimm's and citrus notes blended very nicely, even without actual citrus juice.  I would have liked a little more flavor, but the volume of soda I had to add diluted the drink a bit much for my taste.  I'll have to downsize my glass next time I prepare this one.