Add 45ml concentrated hibiscus tea, 22ml fresh lime juice, 15ml simple syrup, and 30ml aquafaba to a shaker without ice.
Seal the shaker and dry shake vigorously for 15 seconds to emulsify the aquafaba and build foam.
Open the shaker, add a generous scoop of ice, reseal, and wet shake hard for 10 seconds to chill and dilute.
Double strain through a Hawthorne strainer and fine mesh strainer simultaneously into a chilled coupe.
Allow the foam to settle and rise naturally for 10–15 seconds before serving.
For the most vivid crimson colour and intense flavour, brew the hibiscus tea double-strength by steeping two tablespoons of dried hibiscus petals in 150ml of just-boiled water for 10 minutes, then chill before use. A reverse dry shake - wet shake first, then dry shake without ice after straining - can produce an even taller, more stable foam if you want extra drama.
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