Tandoori Chicken Burgers

4 White Sour Dough Burger Buns
4 Baby Cos (Romaine) Lettuce Leaves, Shredded
1 Lebanese Cucumber Peeled lengthways into Ribbons
half advacado, sliced
half red onion, thinly sliced
______________
Tandoori Chicken
______________
Half Cup (125g) plain yoghurt
Juice of half a lemon
3 Garlic cloves crushed
2 Teaspoons Finely Grated Ginger
1 Teaspoons Cumin
1 Teaspoon chilli Powder
1 Tsp ground coriander
Half Teaspoon ground Tumeric
2 Chicken Thighs Halved
____________
Mango Chutney
____________
1 Large Ripe Mango, flesh coarsely chopped
3 tablespoons of cider vinegar
3 tbsp soft brown sugar
2 cm piece of ginger chopped finely
½ tsp cumin seeds
Pinch of dried chilli flakes