Equipment
Ingredients
Fresh Produce and Aromatics
- 650 g aubergine, trimmed and cut into 3 cm cubes
- 1 yellow onion, finely diced
- 4 garlic, minced
- 15 g fresh ginger, peeled and finely grated
- 15 g fresh coriander, chopped leaves and tender stems
- 15 ml lemon juice, freshly squeezed
Pantry and Spices
- 30 ml vegetable oil
- 6 g ground cumin
- 6 g ground coriander
- 3 g ground turmeric
- 3 g kashmiri chili powder
- 4 g garam masala
- 6 g fine sea salt
- 400 g canned diced tomatoes
- 240 g canned chickpeas, rinsed and drained
- 250 ml full-fat coconut milk
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 330 kcal
- Protein
- 8 g
- Carbohydrates
- 31 g
- Fat
- 22 g
- Sodium
- 943 mg
- Saturated Fat
- 13 g
- Potassium
- 1005 mg
- Calcium
- 124 mg
- Iron
- 5.7 mg
- Magnesium
- 92 mg
- Phosphorus
- 185 mg
- Zinc
- 1.4 mg
- Vitamin A
- 34 mcg
- Vitamin C
- 23 mg
- Water
- 239 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Trim the stem and base from the aubergines, then cut the flesh into uniform 3 cm cubes on a cutting board using a chef's knife.
Peel and finely dice the yellow onion, mince the garlic cloves, and peel and grate the fresh ginger on the cutting board.
Set a large skillet over medium heat at roughly 160°C (320°F), pour in 30 ml of vegetable oil, and heat for 2 minutes until the oil shimmers across the pan surface.
Add the diced onion to the hot skillet and sauté for 5 minutes, stirring periodically with a wooden spoon until soft, translucent, and lightly golden at the edges.
Add the minced garlic, grated ginger, ground cumin, ground coriander, ground turmeric, kashmiri chili powder, and the first 2 g of garam masala to the skillet, stirring continuously with the wooden spoon for 1 minute until fragrant.
Transfer the toasted aromatic spice and onion mixture from the skillet into the basin of the slow cooker (minimum 3.5-liter capacity).
Add the cubed aubergine, canned diced tomatoes with their juice, rinsed chickpeas, 250 ml of full-fat coconut milk, and 6 g of fine sea salt into the slow cooker basin, stirring thoroughly with the wooden spoon until the aubergine is evenly coated.
Secure the lid onto the slow cooker and cook on the LOW setting at approximately 95°C (203°F) for 6 hours (or on the HIGH setting for 3 hours 30 minutes) until the aubergine is completely tender and creamy.
Uncover the slow cooker, stir in the remaining 2 g of garam masala, 15 ml of fresh lemon juice, and 15 g of chopped fresh coriander, then taste and adjust with extra salt if needed before serving hot.
Chef's Notes
- Salting and purging aubergines prior to cooking is completely unnecessary here; the gentle braising environment in the slow cooker dissolves bitter enzymes and naturally tenderizes the vegetable without pre-salting.
- Blooming dried ground spices in oil, a classical Indian technique known as tadka, is crucial because slow cookers rely on moist heat and never achieve the dry roasting temperatures required to release lipophilic flavor compounds.
- Splitting the garam masala into two additions builds both depth and top-note brightness: the early addition grounds the curry with rich warmth, while the final stir preserves volatile aromatics like clove and cardamom.
- Full-fat canned coconut milk is essential for emulsification stability; low-fat or carton coconut milk will separate and split over long braising periods.
Storage
Refrigerator: 4 days — Cool leftovers to room temperature within two hours of cooking and store in an airtight glass or plastic container.
Freezer: 3 months — Store in freezer-safe containers leaving 1 cm headspace for expansion. Thaw overnight in the refrigerator before reheating.
Reheating: Reheat on the stovetop in a saucepan over medium-low heat or in a microwave, stirring occasionally, until the internal temperature reaches at least 74°C (165°F) on a food thermometer.
Troubleshooting
The curry sauce is overly thin and watery after slow cooking
Cause: Aubergine and tomatoes release substantial trapped water during cooking, and moisture cannot evaporate from a sealed slow cooker lid
Fix: Remove the slow cooker lid, set the appliance to HIGH for 25 to 30 minutes to reduce, or mash a quarter of the chickpeas against the inner pot wall with a wooden spoon to thicken the gravy
Prevention: Do not add extra water or vegetable stock beyond the tomatoes and coconut milk specified in the recipe
Aubergine pieces have broken down into an unrecognizable puree
Cause: Aubergine was cut smaller than the recommended 3 cm size or the curry was cooked significantly past the 6-hour window
Fix: Embrace the consistency as a thick, rich bharta-style spiced aubergine puree and serve alongside basmati rice or warm flatbreads
Prevention: Cut aubergine into generous 3 to 4 cm cubes and switch the slow cooker to the keep-warm setting once tender
The curry tastes harsh, bitter, or raw-spiced
Cause: Ground spices were undercooked or added directly to the slow cooker liquid without first blooming in hot oil
Fix: Stir in an extra 15 ml of coconut milk and an extra squeeze of fresh lemon juice to round out and balance the harsh notes
Prevention: Always sauté the onions and toast the dried spices in hot oil in the skillet for at least one minute before transferring them to the slow cooker basin
Cultural Context
Drawing inspiration from Indian regional classics like baingan masala and coconut-rich vegetable kormas, this dish pairs hearty aubergine with warming ground spices and velvety coconut milk. While traditional Indian cooking utilizes heavy-bottomed kadhais or stovetop pressure cookers, the slow cooker provides an exceptional modern vessel for the slow braising (dum) style of cooking, allowing stubborn aubergines to surrender their spongy texture into a meltingly tender consistency.
