• 1 (4 to 6 ounce) boneless, skinless chicken thigh -cut into 1 inch cubes

For the Marinade

• ½ cup plain Greek yogurt
• 2 cloves garlic -finely minced
• ½ tablespoon lemon juice
• ½ tablespoon garam masala
• ½ tablespoon ground turmeric
• ½ tablespoon ground cumin
• ¼ teaspoon salt
• ¼ teaspoon ground coriander
• ⅛ teaspoon chili powder
• ½ tablespoon freshly grated ginger -or use ⅛ teaspoon ground ginger

For Cooking the Chicken

• ½ tablespoon olive oil

For the Sauce

• 1 tablespoon salted butter
• ½ cup chopped onions
• ¼ teaspoon salt
• 1 clove garlic -minced
• ½ teaspoon ground cumin
• ½ teaspoon garam masala
• ¼ teaspoon paprika
• ⅛ teaspoon chili powder
• ½ tablespoon freshly grated ginger -or use ⅛ teaspoon ground ginger
• ¾ teaspoon sugar
• 1 cup unseasoned tomato sauce
• ¼ cup heavy cream

For Serving

• cooked basmati rice
• naan (optional)