There are a couple ways that you can introduce the butterfly pea flower into your favorite alcoholic drinks.
First, you can place the dried flowers into the alcohol for a couple hours until the liquid turns blue, then strain the flowers out. Once that liquid interacts with citrus, it will change from blue to a bright pink, then dark purple.
One of the easiest ways to try out your infused alcohol is with shots. For example, get a couple friends and line up a couple shots of an infused tequila, then squirt a lime across each shot and watch the tequila change color before your very eyes.
You can also make the butterfly pea flower into a tea, then add the tea to your alcohol of choice later on. To do this, simply steep 5 to 10 flowers in a cup of hot water and let them sit for 15 minutes. When the petals have lost their color, strain the liquid and bottle the resulting indigo broth.
Butterfly pea flower tea can be added to margaritas, martinis, mules, or any other favorite cocktails to add a colorful 'wow' factor.