Put the coriander, garlic, egg, vinegar, salt and oil in a measuring jar.
Using a hand blender, start blending all the ingredients making sure not to over mix, otherwise the dressing will split.
Once it gets runny and creamy stop blending and serve.Pour it over salads, roasted baby potatoes, steak or anything you want. Keep in the fridge in a container with a lid on for 3 days.
Notes
Tips
If you don't have rapeseed oil, you can use sunflower oil or vegetable oil, but DON'T use olive oil, as it will overpower the flavour.
I find it easy to use a hand blender, because you have more control of the texture.