Looking for an authentic buttermilk chicken curry recipe? This easy step-by-step guide delivers creamy, tangy flavors with simple ingredients and clear instructions. Perfect for home cooks of any skill level.
Recipe
Ingredients:
- 500g boneless chicken (thighs preferred)
- 1 cup buttermilk
- 2 tbsp oil (coconut or mustard oil for authenticity)
- 1 onion, sliced
- 2 green chilies, slit
- 1 tsp mustard seeds
- Curry leaves
- 1 tsp cumin seeds
- 1 tsp ground coriander
- ½ tsp turmeric
- 1 tbsp ginger-garlic paste
- Salt to taste
Steps:
- Marinate chicken in buttermilk, salt, and turmeric for at least 30 minutes.
- Heat oil in a pan, splutter mustard seeds, add onions, green chilies, curry leaves, and sauté till golden.
- Add chicken and cook until browned.
- Add remaining spices and stir well.
- Pour in enough water to create a gravy texture, cover, and simmer for 15–20 minutes.
- Garnish with fresh curry leaves and serve hot.

Pro Tips for Perfect Curry Every Time
- Use Freshly Ground Spices: Pre-ground powders lose potency quickly. Try grinding whole spices as needed.
- Bloom Spices in Oil: Toasting mustard seeds and curry leaves in hot oil releases their natural oils and aroma.
- Simmer Slowly: Rushing the process can lead to dry chicken and a thin sauce. Simmer gently for tender meat and thickened gravy.
- Taste and Adjust: Taste before serving and tweak salt, acid, or spice levels accordingly.
Spice | Origin | Flavor Profile | Best Used For |
---|---|---|---|
Mustard Seeds | India | Nutty, earthy, slightly bitter | Pickles, tempering, curries |
Curry Leaves | South India | Lemon-like, herbal | Tempering, seafood, chicken |
Coriander Powder | Worldwide | Citrusy, warm, floral | Gravies, marinades, spice blends |
Turmeric | Asia | Earthy, peppery | Coloring agent, anti-inflammatory boost |
Buying Guide for Essential Ingredients
To make an authentic buttermilk chicken curry, sourcing quality ingredients matters. Here's a handy guide to help you pick the best products:
- Buttermilk:
- Choose full-fat, cultured buttermilk for richer flavor.
- Look for live cultures for better probiotic benefits.
- Recommended brands: Organic Valley, Maple Hill Creamery.
- Chicken:
- Free-range, hormone-free thighs offer better texture and moisture retention.
- Avoid pre-seasoned or injected cuts for full control over flavor.
- Recommended: Perdue Harvestland, Bell & Evans.
- Spices:
- Buy whole spices in small batches and grind as needed for freshness.
- Check for "packaged on" dates and avoid overly dusty powders.
- Recommended: Frontier Co-op, Simply Organic.
- Oil:
- Coconut oil gives authentic South Indian flavor.
- Mustard oil is traditional in some regional variations.
- Recommended: Nutiva (coconut), Panchwati (mustard).

Serving Suggestions and Accompaniments
Buttermilk chicken curry shines when paired with the right sides:
- Rice: Basmati rice or jeera rice complements the tangy gravy.
- Bread: Fluffy naan, soft appam, or crusty sourdough work beautifully for scooping.
- Vegetables: Cucumber raita, pachadi, or sautéed spinach balance out the richness.
- Drinks: Chilled mango lassi, mint lemonade, or even a crisp white wine enhance the experience.

Frequently Asked Questions
-
Can I substitute buttermilk with regular milk or yogurt?
While possible, substitutes significantly alter the dish. Buttermilk's acidity tenderizes chicken uniquely. For yogurt, thin it with water (1:1 ratio) and add ½ tsp lemon juice to mimic tang. Milk requires 1 tbsp vinegar per cup and won't provide the same depth. True authenticity requires cultured buttermilk.
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How long should I marinate the chicken for optimal tenderness?
Minimum 30 minutes for flavor penetration, but 2-4 hours delivers transformative results. Overnight marination (max 12 hours) maximizes tenderness through enzymatic action. Never exceed 24 hours as buttermilk can make chicken mushy.
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My curry turned out too thin – how can I thicken it without altering flavor?
Create a slurry with 1 tbsp rice flour and 2 tbsp cold water. Whisk into simmering curry and cook 3 minutes. Alternatively, mash cooked chicken pieces against the pot wall to release natural thickeners. Avoid cornstarch as it dulls spice aromas.
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Can I make this curry ahead of time? How does it reheat?
Flavors deepen when refrigerated overnight. Reheat gently on stove (not microwave) with 2 tbsp water to revive moisture. Buttermilk-based curries freeze exceptionally well for up to 3 months – thaw overnight before reheating.
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What's the secret to authentic South Indian flavor I'm missing?
Three critical elements: 1) Mustard oil's pungency (heat until smoking then cool before use), 2) Fresh curry leaves (never dried substitutes), 3) Tempering sequence – mustard seeds first, then curry leaves in hot oil. Skipping any compromises authenticity.