Butter Chicken Recipe (Murgh Makhani Recipe)

Ingredients

• 1 onion ((quartered))
• 3 cloves garlic
• 1 1-inch piece fresh ginger ((peeled))
• 1 teaspoon fennel seeds ((optional))
• 1 teaspoon ground cumin
• 1 teaspoon ground coriander
• 1 teaspoon sugar
• ½ teaspoon ground ginger
• ½ teaspoon ground turmeric
• ¼ teaspoon ground cloves
• 1/8 teaspoon cayenne pepper
• ½ teaspoon kosher salt ((or more to taste))
• ½ teaspoon freshly ground black pepper ((or more to taste))
• 2 pounds boneless skinless chicken thighs ((cut into 1 1/2-inch pieces))
• 6 tablespoons unsalted butter ((divided))
• 1 can (8 ounces) tomato sauce
• 3 tablespoons tomato paste
• 1 cup chicken broth ((or water))
• ½ teaspoon ground fenugreek
• 1 cinnamon stick
• 2 bay leaves
• ½ cup heavy cream
• 1 tablespoon fresh lemon juice
• ½ cup chopped fresh cilantro
• Hot cooked rice ((for serving, preferably basmati or jasmine))