This striking take on a Tom Collins takes the classic gin drink from tasty to magical with the addition of color-changing butterfly pea flower tea. Brewed with water, the tea turns a vivid blue, but mixed with acidic lemon juice, it transforms into a shock of magenta. Use the leftover mild-flavored, bright blue tea ice cubes to add a bright blast of color to any drink, from a simple Vodka Tonic to a Paloma.
Brew the butterfly pea flower tea by steeping 2 heaping tsp in 2 cups of boiling water for 3-5 minutes until it becomes deep blue. Set 2 oz aside, then pour the rest into an ice cube tray and freeze.
Rim a highball glass in simple syrup and then in colored sugar (pinks, blues and purples).
Add the blue tea cubes to the glass.
Shake reserved 2 oz of blue tea with gin, simple syrup and ice.
Strain into the rimmed highball.
Top with soda water, leaving room at the top for the lemon juice.
Slowly pour the lemon juice into the cocktail, then stir and watch the cocktail change from blue to magenta.
Contributed by Supercall