To create this incredible Butter Chicken, follow these clear and simple steps:

1. Marinate the Chicken: In a bowl, combine yogurt, lemon juice, garam masala, cumin, turmeric, paprika, salt, and black pepper. Add the chicken pieces, ensuring they are well-coated. Cover and refrigerate for at least 1 hour, preferably overnight.
2. Cook the Chicken: In a large skillet over medium heat, melt 1 tablespoon of butter. Add the marinated chicken pieces and cook until browned (about 5-7 minutes). Remove the chicken and set aside.
3. Sauté Onions: In the same skillet, add the remaining butter. Sauté the chopped onion until golden brown (around 5-6 minutes).
4. Add Garlic and Ginger: Stir in the minced garlic and grated ginger, cooking for another 1-2 minutes until fragrant.
5. Incorporate Tomato Puree: Add the tomato puree to the onion mixture. Stir well and let it simmer for about 10-15 minutes, allowing the flavors to develop.
6. Add Cream and Chicken: Lower the heat, pour in the heavy cream, and mix thoroughly. Add the cooked chicken back to the skillet and simmer gently for an additional 10-15 minutes.
7. Adjust Seasoning: Taste the sauce and add more salt or spices if needed. The sauce should be rich and flavorful.
8. Garnish: If desired, sprinkle freshly chopped cilantro over the top before serving.

These straightforward steps will guide you on your way to creating a hearty Butter Chicken dish that will surely impress!