Chureck (Iraqi cheese pies)

Name: Chureck (Iraqi cheese pies)
Prep time: 15 min
Cook time: 1 h 40 min
Total time: 1 h 40 min
Yield: 12 piece
Ingredients: 50 g water; 170 g unsalted butter; 180 g milk; 2 tsp sugar; 2 ¼ tsp active dry yeast; 2 eggs; 650 g all purpose white flour; 1 tsp salt; cooking spray; all purpose white flour; 150 g feta cheese; 220 g Halloumi; 180 g mozzarella; 1 egg; 1 tbsp water; 40 - 50 g sesame seed, any colour; mint leave, fresh