Like Signatures, but with a blueberry glow: try The Cos-Glow.
For 1 cocktail
Add Cointreau and blueberries into tin and muddle.
Add remaining ingredients to shaker with ice and shake.
Fine strain into martini or coupe glass. Garnish with speared blueberry.
Put the quantity of ingredients you have, to know how much other ingredients you need and how many cocktails you can make.