How to Make Chicken Tikka Masala
To make chicken tikka masala, slice chicken breasts in half lengthwise, then marinate them for 4-6 hours in a blend of yogurt, peanut oil, lemon juice, and minced garlic. Once the chicken is marinated, broil it for 12 minutes and chop it up. In the meantime, saute chopped onions in butter for about 5 minutes, then add the dry spices to the pan and cook them for 30 seconds. When the spices become fragrant, add tomato puree, water, heavy cream, and salt. Simmer the sauce for about 10 minutes, then add the chicken to the sauce and simmer for another 5 minutes before serving.
Whisk the yogurt, oil, juice, and garlic in a small bowl. Get out a bowl and put 1/4 cup (70 g) of plain whole-milk Greek-style yogurt into it. Whisk in 1 tablespoon (15 ml) of peanut oil or vegetable oil, 2 teaspoons (9.9 ml) of fresh lime or lemon juice, and 1 minced clove of garlic. Slice the chicken breasts in half and toss them in the marinade. Put 1 ⁄ 2 pounds (680 g) of boneless, skinless chicken breasts onto a cutting board. Use a sharp knife to carefully slice each breast in half lengthwise. Then, stir the chicken in the marinade so the breasts are completely covered. Slicing the chicken breasts into thin halves will help the chicken cook faster and evenly. Always practice food safety when handling raw meat. Wash your hands well before and after handling the chicken. Then sanitize the cutting board and knife before using them again. Cover the bowl and marinate the chicken for 4 to 6 hours. Cover the bowl with a piece of plastic wrap and put it in the refrigerator. Leave the chicken to absorb the flavors for at least 4 hours or up to 6 hours. The longer you marinate the chicken, the more flavorful it will be. Mix the dry spices. Get out a small bowl and put all of the dry spices into it. Then whisk the spices for about 20 seconds so they're combined. You'll need to whisk: 1 tablespoon (8 g) of ground coriander 1 1/2 teaspoons (4 g) of ground cumin 1/2 teaspoon (1 g) of ground cardamom 1/2 teaspoon (1 g) of ground nutmeg 1 1/2 teaspoons (4 g) of paprika 1/2 teaspoon (1 g) of cayenne 1 tablespoon (7 g) of grated fresh ginger Sauté the onion for 5 minutes. Put 4 tablespoons (56 g) of unsalted butter into a large pot and turn the burner to medium-high. Once the butter melts, stir in 1 finely chopped onion. Stir the onion frequently and cook it until it becomes lightly brown. It's alright if the onion doesn't caramelize evenly. It will finish cooking as you make the rest of the masala sauce. Stir in the spices and cook them for 30 seconds. Add the dry spice mixture to the pot and stir them until they're combined with the onion. Stir and cook the spiced onions over medium heat for about 30 seconds. Heating the spices in the oil will intensify their flavor. Add tomato puree, water, cream, and salt. Pour 1 1/2 cups (340 g) of canned tomato purée into the pot along with ⁄ 4 cup (180 ml) of water, ⁄ 2 cup (120 ml) of heavy cream, and 1 1/4 teaspoons (7 g) of kosher salt. Stir to incorporate the liquids. Simmer the masala sauce for 10 minutes. Heat the sauce until it comes to a boil and then turn the burner down to medium-low. Let the masala sauce bubble gently with the lid off so it thickens a little. Stir the masala sauce occasionally to prevent it from sticking to the bottom of the pot. Turn the broiler on and adjust the rack. Most broilers simply have an ON or OFF option but if yours has heat levels, turn the heat to HIGH. Then move the rack so it's about 8 inches (20 cm) below the heating element. Lay the marinated chicken on a baking sheet. Remove the bowl of chicken from the refrigerator and get out a baking sheet. Lift out each piece of chicken and use a spoon or spatula to scrape the excess marinade back into the bowl. Then lay the pieces of chicken on the baking sheet so they're in a single layer. For extra flavor, sprinkle a little salt and pepper over the chicken pieces. Broil the chicken for about 12 minutes. Put the baking sheet on the rack under the broiler. Cook the chicken until it's charred on the outside and fully cooked on the inside. You'll need to flip it 1 to 2 times as it broils so it cooks evenly.  Remember to wear oven mitts when handling the hot pan and opening the oven. Use tongs to flip the chicken so you don't burn your hands. Cut the chicken into 2 in (5.1 cm) pieces. Turn off the broiler and transfer the cooked chicken to a clean cutting board. Then use a sharp knife to cut the chicken into even pieces. Stir the chicken into the masala sauce and simmer it for 5 minutes. Add the cooked chicken pieces to the pot and stir until the chicken is coated in the masala sauce. Heat the chicken tikka masala until it bubbles gently and cook it for 5 minutes over medium heat. Stir the chicken tikka masala occasionally to prevent the sauce from sticking to the pot. Turn off the heat and stir in salt, pepper, and cilantro. Move the pot of chicken tikka masala to a trivet or a burner that's not hot. Then stir in 1/2 teaspoon (1 g) of freshly ground black pepper and salt according to your taste. Add 1/2 cup (25 g) of chopped fresh cilantro just before you're ready to serve the chicken tikka masala.  The cilantro will immediately begin to lose its bright green color, so serve the chicken tikka masala quickly. Serve the chicken tikka masala with rice or naan. Garnish the top with a little extra fresh cilantro and serve the dish with basmati rice or naan. To store leftover chicken tikka masala, put it in an airtight container and refrigerate it for up to 3 days. 
Whisk the yogurt, oil, juice, and garlic in a small bowl. Slice the chicken breasts in half and toss them in the marinade. Cover the bowl and marinate the chicken for 4 to 6 hours. Mix the dry spices. Sauté the onion for 5 minutes. Stir in the spices and cook them for 30 seconds. Add tomato puree, water, cream, and salt. Simmer the masala sauce for 10 minutes. Turn the broiler on and adjust the rack. Lay the marinated chicken on a baking sheet. Broil the chicken for about 12 minutes. Cut the chicken into 2 in (5.1 cm) pieces. Stir the chicken into the masala sauce and simmer it for 5 minutes. Turn off the heat and stir in salt, pepper, and cilantro. Serve the chicken tikka masala with rice or naan. 