Chicken Shawarma Burger

Name: Chicken Shawarma Burger
Cook time: 1 h 30 min
Total time: 1 h 30 min
Cuisine: Middle Eastern
Ingredients: 1 Tbsp Ground Cumin; ½ Tbsp Turmeric Powder; 1 Tbsp Ground Coriander; ½ Tbsp Ground Cinnamon; ¼ Tbsp Ground Cloves; ¼ Tbsp Chilli Powder; 1 Onion; 6 Chicken Thighs (Boneless And Skinless); 1 Lemon; 1 Tbsp Salt; 3 Tbsp Olive Oil; 1 Large Tomato; ½ a Red Onion; 1 Small Gherkin; Handful of Coriander; 2 Tbsp Red Wine Vinegar; 1 Tbsp Sugar; Handful of Mint; 250g Greek Yoghurt; 4 Brioche Burger Buns; Olive Oil; Salt