The Double Rainbow
1 ounce vodka
1 ounce St. Germain elderflower liqueur
4 or so ounces of soda water
4 dashes of grapefruit bitters (Fee Brothers brand)
lemon peel for garnish
rainbow ice cubes
Make rainbow ice by adding food coloring to an ice cube tray, filling with water and freezing.
Cut lemon peel into stars. Add all ingredients to a glass filled with ice in rainbow order (two cubes per color, making it a double complete rainbow). Garnish with lemon stars.