Middle Eastern chicken with pearl couscous

Name: Middle Eastern chicken with pearl couscous
Prep time: 20 min
Cook time: 40 min
Total time: 40 min
Yield: 4 portions
Ingredients: 300 g pearl couscous; boiling water; 4 sprigs fresh coriander; 4 sprigs fresh mint; 1 lemon; 1 tbsp olive oil; 150 g brown onion; 4 cm piece fresh ginger; 3 garlic cloves; 1 fresh long red chilli; 1 ½ tsp ground cumin; 1 ½ tsp ground cinnamon; ½ tsp ground turmeric; 1 tsp salt; 400 g canned chopped tomatoes; 1 tbsp Chicken stock paste; 1000 g skinless chicken thigh fillet; 50 g currant