- 25cm horseradish, cleaned and peeled, then chopped into chunks
- 1 tbsp cider vinegar
- 2 tbsp water
- Pinch of salt
- Put horseradish and water into a food blender. Blend until ground. The aroma is very potent - much more so than chopping onions - so be careful and circumspect. Remove any excess water if you need to.
- Add vinegar and a pinch of salt. Pulse a few times until mixed in.
- Keep in fridge for 2-3 weeks.
- To smarten it up: add a little cream if you want.