In a bowl, toss the chicken with the spices, cover with cling film and chill for at least 1 hour, or overnight. Meanwhile, soak the apricots and raisins in a little of the hot stock and set aside for at least an hour.
Heat the oil in a large, deep-sided frying pan over a high heat. Add the chicken in 2 batches and brown all over. Remove from the pan using a slotted spoon and set aside on a plate lined with kitchen paper. You should be left with a rich golden oil in the pan, but add extra rapeseed oil if required.
Fry the onions over a medium heat for 4-6 minutes until soft, stirring through the garlic for the last minute. Add the saffron along with its water, and the tomatoes, tomato purée, honey, fruit and soaking liquid. Pour in the remaining chicken stock and bring to a steady simmer. Cook for about 10 minutes, then season with sea salt and ground black pepper.
Return the browned chicken pieces to the pan and carefully stir through. Simmer, partly covered, for 20 minutes, stirring occasionally, until the chicken is cooked through and the sauce has thickened.
Prepare the mashed potatoes to your liking and serve the chicken tagine on top of a generous helping of mash, topped with toasted flaked almonds, chopped fresh coriander.