1. Place raspberries in a zip-lock bag and smash with a rolling pin so that they are crushed.
2. Place all ingredients in a large bottle or jar, tightly seal, then place in the fridge.
3. Keep in the fridge for 2 to 4 weeks, giving the bottle a good shake every day or when you can remember.
4. Strain and mix with soda water for a yummy, sweet drink.
The point of this recipe is to make vodka really yummy so don't worry about using a cheap bottle, it'll still taste awesome.
Source of recipe: Modified version of what they serve at local pub