Moroccan lamb burgers with harissa yoghurt dressing

Name: Moroccan lamb burgers with harissa yoghurt dressing
Prep time: 15 min
Cook time: 1 h 5 min
Total time: 1 h 5 min
Yield: 6 portions
Ingredients: 70 g fine burghul; water; 1 lemon; 4 sprigs fresh mint; 4 sprigs fresh flat-leaf parsley; 2 eschalots; 2 garlic cloves; 20 g extra virgin olive oil; 500 g lamb mince; 1 tsp ground cumin; 1 tsp ground coriander; 1 tsp salt; ¼ tsp ground black pepper; 3 sprigs fresh flat-leaf parsley; 2 sprigs fresh mint; 20 g lemon juice; 200 g Greek-style natural yoghurt; 1 tbsp harissa paste; ½ tsp salt; oil; 6 round bread rolls