My home-made veganaise (vegan mayo) is so much better than store-bought. It's rich, creamy, and silky, really easy to make, and is deliciously more-ish!
Place all of the ingredients, except the oil, into a large jar or beaker, and blitz well for a few seconds with an immersion (stick) blender, until the mixture thickens and turns white.
With the blender still going, slowly add the oil, and keep blending until you have a thick and creamy mayo.
Taste, and add a little more salt if desired (I find a very small pinch is plenty though).
Once the mayo is ready, decant into a sterilised screw-top jar, cap, and keep in the 'fridge for a couple of weeks.