Chicken with Mashed Potatoes and Gravy

Name: Chicken with Mashed Potatoes and Gravy
Prep time: 25 min
Cook time: 1 h 10 min
Total time: 1 h 10 min
Yield: 6 portions
Ingredients: 30 - 35 oz chicken breast fillets, boneless, skinless; 6 oz plain Greek yogurt; 2 tbsp ground smoked paprika, hot; 2 tsp ground turmeric; 1 tbsp chili powder; 1 tbsp onion powder; 1 tbsp garlic powder; 1 tbsp lemon juice; 1 tbsp soy sauce; 1 tsp salt; 32 oz chicken stock; 30 oz Yukon gold potatoes; 4 oz unsalted butter; 2 oz whipping cream; 1 oz unsalted butter; 1 oz all-purpose flour; 2 tsp soy sauce; salt; ground black pepper; fresh parsley leaves