Butter Chicken Curry Recipe Slow Cooker: Yogurt-Marinated Tender Chicken in Creamy Tomato Gravy

This butter chicken curry recipe transforms tough chicken into melt-in-your-mouth tenderness using a yogurt marinade and slow cooker magic. The secret lies in letting the spices and yogurt work their magic overnight—no stovetop babysitting required.

I perfected this after years of testing, ensuring every bite delivers that perfect balance of creamy tomato gravy and aromatic spices.

The slow cooker does all the heavy lifting here, breaking down the chicken while developing deep, complex flavors. You'll start with a vibrant marinade of yogurt, lemon, and spices that tenderizes the meat, then let the slow cooker transform it into a rich, velvety curry.

The key is patience—low and slow creates that restaurant-quality texture we all crave, without the fuss of stovetop cooking.

What you end up with is creamy, tender chicken swimming in a fragrant tomato gravy that's perfectly balanced between sweet, tangy, and spicy. The yogurt marinade keeps the chicken juicy, while the slow cooker ensures the spices meld into every bite.

This isn't just comfort food—it's the kind of meal that makes your home smell like a bustling Indian restaurant.

Serve it over basmati rice with a sprinkle of fresh cilantro and toasted cashews for that final touch of elegance. The leftovers? Even better the next day as the flavors deepen. Let's get cooking—your taste buds will thank you.

Ingredients for butter chicken curry recipe slow cooker

Yogurt, spices, and slow cooker magic transform simple chicken into restaurant-worthy butter chicken.

The chicken thighs are the star—skin-on gives the best flavor, but boneless makes prep easier. I always grab organic thighs from Whole Foods when possible, but the regular supermarket brand works fine. Look for plump, firm pieces with good marbling. The yogurt? Full-fat Greek makes all the difference—it's richer and won't water down your marinade. If you're using plain yogurt, make sure it's not too tangy; Fage or Siggi's are my go-tos. The spices? Penzeys for the best quality, but the grocery store stuff works if it's fresh. Quick test: if your garam masala smells like dust, toss it and buy a smaller jar next time.

No garam masala? Mix 1 tsp each of ground cumin, coriander, cinnamon, and cardamom—it's not identical, but it gets you close. Running out of heavy cream? Half-and-half works in a pinch, though it won't be as rich. The tomato paste can be the squeeze tube kind from Trader Joe's—no waste, and it keeps forever. For the butter, unsalted is key so you control the seasoning. Want extra creaminess? Add 2 tbsp coconut milk to the gravy at the end. The cashews? Toast them in a dry pan for 3-4 minutes—that nutty aroma takes this dish to the next level. No toasted cashews? Pistachios work too, though the flavor will be different.

This marinade keeps 3 days in the fridge—perfect for overnight tenderizing. The cooked curry reheats beautifully; just add 1-2 tbsp water if it thickens too much. Store leftovers in airtight containers for up to 4 days, or freeze for 3 months. I always make a double batch because it tastes even better the next day. Garnish with fresh cilantro right before serving—the good stuff, not the pre-chopped kind—and toast those cashews fresh so they stay crisp. Serve over jasmine rice if you've got it, but basmati works just fine.

Step-by-step instructions for slow cooker butter chicken curry

Here's how to create restaurant-quality butter chicken with minimal effort.

In a large bowl, combine the 1 cup plain yogurt, 0.25 cup lemon juice, 1 tablespoon garam masala, 1 teaspoon ground cumin, 1 teaspoon ground coriander, 0.5 teaspoon turmeric powder, 0.5 teaspoon ground cinnamon, 0.5 teaspoon red chili powder, and 1 teaspoon salt. Whisk until smooth and well combined.

Add the 1.5 lb boneless chicken thighs to the marinade, coating each piece thoroughly. Cover the bowl and refrigerate for at least 8 hours or overnight. This long marinade time ensures the chicken stays incredibly tender while absorbing all those aromatic spices. I know it's tempting to skip this step, but trust me—it makes all the difference in the final texture and flavor.

Transfer the marinated chicken to your slow cooker, discarding any excess marinade. In a small bowl, mix the 0.5 cup tomato paste with 0.5 cup heavy cream and 0.5 cup butter until smooth. Pour this mixture evenly over the chicken in the slow cooker.

This step creates the rich, velvety sauce that butter chicken is famous for. The tomato paste provides the tangy base, while the cream and butter add that luxurious richness. Give the slow cooker contents a gentle stir to distribute everything evenly, then cover and cook on Low for 6 hours or High for 3 hours. You'll know it's ready when the chicken is fork-tender and easily pulls apart.

Once the chicken is tender, carefully transfer it to a serving platter. Using a slotted spoon, remove the chicken from the sauce and set aside. Skim any excess fat from the sauce in the slow cooker, then return the chicken to the sauce to heat through for another 10 minutes on High. This final step ensures everything is piping hot and properly coated.

For serving, garnish each portion with 0.25 cup chopped fresh cilantro and 0.25 cup toasted cashews. The cilantro adds a bright, fresh contrast to the rich sauce, while the cashews provide a delightful crunch. Serve immediately with basmati rice or warm naan bread to soak up every last bit of that creamy goodness.

Regional styles of these flavors

Punjabi Roots

This dish traces back to Punjab, India, where it originated as a way to use leftover tandoori chicken in a creamy tomato sauce. The original version was simpler—just yogurt, tomatoes, and cream—but modern adaptations like ours incorporate garam masala and cashew garnishes for depth.

I first fell in love with it during a trip to Amritsar, where street vendors served it with buttery naan straight from the tandoor. 🌶️

Mughlai Influence

The rich, buttery sauce reflects Mughlai cuisine, brought to India by Persian and Central Asian rulers. Their love of dairy and slow-cooked meats shaped this dish into the luxurious comfort food it is today.

The slow cooker mimics traditional dum cooking—sealing the pot to trap steam and melt spices into the meat. My grandmother used to say, "Patience is the secret ingredient"—and she was right about this one too.

Modern American Adaptations

In the U.S., we’ve made it more approachable with ground spices (no whole spices to toast) and slow cooker convenience. Many recipes swap heavy cream for coconut milk, but I prefer the authentic dairy richness—it’s what makes the sauce velvety.

For a spicier kick, add 1 tsp Kashmiri chili powder (it’s red but mild) or ½ tsp cayenne. The key is balancing sweetness—1 tbsp honey in the marinade enhances the tomato’s natural sugars.

Regional Spice Variations

In Hyderabad, they use more tamarind for tang, while Delhi-style versions include fenugreek leaves for bitterness. For a South Indian twist, replace garam masala with curry leaves and black pepper.

I’ve even seen Goan adaptations with vinegar instead of lemon juice—it’s all about what you have on hand. The slow cooker makes it easy to experiment without risking burnt spices on the stovetop.

Slow Cooker vs. Tandoor

The slow cooker can’t replicate a tandoor’s smoky char, but it does something special: even heat distribution. Traditional methods require hours in a 900°F oven, while our method achieves tenderness in 6 hours on Low.

The trade-off? You lose that smoky aroma, but gain foolproof consistency. For extra depth, finish the dish with 1 tsp smoked paprika or a dash of liquid smoke—just don’t overdo it!

Vegetarian Twist

Swap chicken for extra-firm tofu or cauliflower florets (tossed in the marinade) for a Punjabi-style veg butter dish. Use chickpea flour to thicken the sauce if needed. I tested this version with my neighbor’s vegan guests, and they were shocked at how creamy and satisfying it was.

The key? Press the tofu for 30 minutes to remove excess water before marinating.

Frequently asked questions