What goes together better than birthdays, drinking, and SCIENCE?

[A one-liter glass bottle filled with vodka and blackberries]
This bottle contains approximately equal parts of vodka, sugar syrup, and blackberries; I've taken inspiration and advice from Homebrew Underground and Food.com.
Now to let it macerate, and strain out the blackberries, and hopefully by the time of the co-birthday we will have some blackberry liqueur!
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