I was actually feeling in the mood for something with citrus recently and came across this one while looking through Brian Van Flandern's Craft Cocktails. There are plenty of great drinks in this book (and its companion Vintage Cocktails) but half of the time I find myself thumbing through it because the pictures are gorgeous.
This one pairs gin with aquavit so you get a variety of botanical elements making contributions. There are plenty of other flavors involved though. Lime, grapefruit and a hint of grapes keep things light while a rich honey syrup smooths and sweetens. There's a little bit of falernum in the mix as well. Not so much that it takes over but enough to pick out the contributions made by the cloves and ginger. This one also gets a mix of crushed, toasted fennel and salt on the rim. The fennel is a particularly nice touch making an intense aromatic contribution as the glass nears. The impact of the fennel carries into the flavor of the drink as well, tying in nicely to the gin and aquavit while the salt plays off of the citrus elements. This results in a light but rich drink which was a sharp, and welcome, contrast to the icy, gusty lousiness outside.
Gypsy Wedding - Brian Van Flandern, Craft Cocktails, 2013
1 1/2 oz Bombay Dry Gin
3/4 oz Lime Juice
1/2 oz Krogstad Aquavit
1/2 oz Grapefruit Juice
1/2 oz Acacia Honey Syrup (2:1)
1/4 oz John D. Taylor's Velvet Falernum
6 Green Grapes
Garnish - Toasted Fennel-Salt Rim
Shake, Strain, Up