Lamb kleftiko

Name: Lamb kleftiko
Prep time: 20 min
Cook time: 4 h
Total time: 4 h
Yield: 8 portions
Ingredients: 1 Lebanese cucumber; ¼ tsp salt; 1 garlic clove; 2 sprigs fresh mint; 300 g Greek yoghurt; lemon juice; 30 g olive oil; 1 pinch ground black pepper; 200 g rice flour; 150 g brown rice flour; 100 g potato starch; 60 g arrowroot flour; 3 tsp xanthan gum; 1 ½ tsp salt; 500 g warm water; 2 ½ tsp dried instant yeast; 2 tsp pure maple syrup; 2 tbsp vegetable oil; 2 tbsp psyllium husk; 750 g boneless lamb shoulder; 1 tbsp olive oil; ½ lemon; 2 tbsp white wine; ½ tsp salt; ½ tsp ground black pepper; 1 tsp dried oregano; 1 tsp sumac; 4 garlic cloves; 2500 g water