Creamy Butter Chicken

Name: Creamy Butter Chicken
Prep time: 40 min
Cook time: 30 min
Total time: 1 h 10 min
Cuisine: Asian, Indian
Ingredients: 2 lb boneless skinless chicken thighs (cut into bite-sized pieces); 1/2 cup plain yogurt; 2 garlic cloves (minced); 1 teaspoon paprika; 1 teaspoon garam masala; 1/2 teaspoon turmeric; 3/4 teaspoon salt; 3 tablespoons olive oil; 1 small onion (finely chopped); 3 tablespoons butter; 3 garlic cloves (minced); 1 teaspoon fresh ginger (grated); 14 oz tomato passata or crushed tomatoes; 1/2 cup chicken broth; 3/4 cup heavy cream (room temperature); 2 teaspoons garam masala; 1/2 teaspoon sugar; salt if needed (to taste); fresh parsley