Peel the sweet potato and cut into rough chunks, then put in a microwaveable bowl with a splash of water. Cover with cling film, then cook on high for 8 mins. Alternatively, you can cook these on a hob for 10 minutes. Meanwhile, whisk the tahini with the lemon juice and enough water to make a thick dressing. Season and set aside.

Carefully remove the cling film from the sweet potato, then blitz in a food processor until mashed but not pureed. Leave to cool for 5 mins, then add the coriander and coriander seeds. Blitz to a herby mash, (be careful not to over blitz as you still want some texture) and transfer to a mixing bowl. Then add the salmon, lemon zest, flour and some seasoning. Pulse again – you want the salmon to be roughly mixed in, rather than obliterated to mush.

In a small bowl add the remaing flour and shape into four fishcakes, dipping into the flour to fully coat. Pop on a plate and press them down lightly to create patties. Chill in the fridge for 30 minutes. Add the remaining tbsp of olive to a large non-stick frying pan over a medium heat. Add the fishcakes and fry for 5 mins on each side until crisp and golden. Serve with the lemon wedges, tahini dressing and salad.