15ml Gin
1 tsp brown sugar
1/8 tsp turmeric
Juice of one lime
Ginger beer
Orange slices
Dried tarragon leaves

Add the gin and brown sugar to large glass.
Add the turmeric and the lime juice and stir to dissolve. 
Add a scoop of ice and top up with ginger beer.
Garnish with an orange slice and a sprinkle of tarragon.