1CabbageWhite / red or half and half - also savoy / sweetheart etc all tried with success
1-2CarrotsSee below for prep options
1OnionWhite is quite powerful, red is a lighter option - half and half also good.
1tspSaltGrind in to taste, be careful, easily overdone
1tspBlack pepperGrind in to taste
1tspGranulated sugarCouple of pinches
1handfulFresh parsley or chivesSee notes below re chives
100mlYoghurt or mayoYoghurt is so much better - use as much / little as you like
1tspWholegrain or dijon mustardoptional but gives a good tang to the dressing
1splashCider vinegardefinitely need to taste after adding and evaluate
Instructions
Take the cabbage halves and halve them again lengthways (ie top to bottom) then cut out the core
Then either finely slice with a knife, or ideally use a mandolin to shred. Break up the bits and put into a large bowl
Halve the onion, then finely slice or mandolin across the grain (ie to get "half an onion ring")
The carrot is a bit more of a pain in the arse - you can grate it, or I recently saw a tip from Jamie O there he took a whole carrot, then he cut it down the middle from about 2cm from the top, then rotated and did it again (ie it's in quarters lengthways but not all the way to the end) and then went at it with a potato peeler - it's quite good.
With all these things in a bowl, grind some salt and pepper into it, and add the sugar and mix thoroughly, the salt and sugar will lightly cure the cabbage and soften it slightly. Ideally leave for half hour or so.
When ready to serve, drain any liquid from the bowl, then take 100ml of yoghurt, add 1 tsp of wholegrain mustard and a splash of cider vinegar and mix in a separate bowl, then dump it into the slaw
Finely chop some fresh parsley or chives and mix in - this is mostly for appearance as the little green flecks of herb look great, so just eyeball it.
Notes
Chives have a slight oniony flavour, and actually make a great substitute for onion entirely if you're not a big onion fan - just just the whole pack so as to get the flavour coming through!