Chicken tagine with lemons, olives & pomegranate

Name: Chicken tagine with lemons, olives & pomegranate
Prep time: 10 min
Cook time: 1 h 30 min
Total time: 1 h 40 min
Cuisine: Moroccan
Ingredients: 2 tbsp olive oil; 8 chicken thighs; 1 onion , chopped; 2 garlic cloves; 2 tbsp Moroccan spice mix (see below); 1 large or 2 small preserved lemons , skin only, finely chopped; 2 large tomatoes , chopped; 1 chicken stock cube; 1 tbsp honey; 1 tbsp red wine vinegar; handful olives; 1 small lemon , 1/2 very thinly sliced; ½ pomegranate , seeds only; 100g feta , crumbled; small bunch mint , leaves only; couscous , to serve; 2 tbsp coriander seeds; 1 tbsp cumin seeds; 1½ tsp fennel seeds; ½ tsp black pepper; ¼ tsp ground ginger; 1 tsp ground cinnamon; good pinch saffron