Remove any of the inner flesh from a piece of preserved lemon and rinse off any white residue on the rind part. Finely chop 1tbsp of the preserved rind to use in this recipe.
If mixing by hand, place all of the ingredients in a small jar and shake them together. Alternatively, place everything in a small food processor and pulse to combine and further break up the preserved lemon.
Use immediately or store in a sealed jar in the fridge - note you will need to re-shake the dressing before using as it will settle out.