I do this by guestimates usually, but you usually only need one small onion and one small carrot, as for the most part it is sprouts.
Step 1 wash and peel your veg.
grate your sprouts carrot and onion in to a large bowl, add the mayonaise and stir in till it is around the same consistency you would expect from any other coleslaw.
Add the squeeze of lemon to taste and seasoning.
If you have any sumak it is always a nice lemony addition to the coleslaw too, or add a little lemon zest instead.
Please note: this recipe has been created and uploaded by a member of the Tesco Real Food online community. Tesco does not test customer recipes so cannot accept responsibility for the content, validate the results or answer queries regarding them.