Add the blackberries and sugar to a large jar. Mash them thoroughly with the masher.1 lb blackberries
Top the mashed blackberries with alcohol.1 quart vodka
Close the bottle and shake.
Store in a cool area for 7 days or to taste, shaking each day.
Strain out the blackberries from the vodka and keep the vodka in a glass bottle away from sunlight.
Serve as desired.
Notes
Store your infused blackberry vodka in the fridge. It will last for up to 2 years.
Tips & Variations
Add 2-3 sliced vanilla pods for a floral note.
Choose a type of vodka you'd like to sip.
While you're making this blackberry infused vodka recipe, you may as well make a batch of blackberry extract for baking! Adapt my blueberry extract and use blackberries instead.
To use frozen blackberries, let them thaw first and strain off any excess liquid.
For a stronger blackberry flavor, feel free to use up to twice as many blackberries.
The type of blackberry doesn't matter. I used marionberries for this blackberry vodka, and they worked wonderfully!
Substitute your favorite alcohol, like gin or brandy, for a different flavor profile.
The sugar is completely optional. If you prefer a dry flavor, ditch it completely for a subtle blackberry note in your drinks.
For a sweeter blackberry liqueur, double (or even quadruple) the caster sugar.