Slow Cooker Chicken Curry (15-Minute Prep)

Why this recipe works

Thighs are the right cut for a long cook. They have enough fat and connective tissue to stay juicy after 7 hours. Breasts turn stringy and dry after more than about 4 to 5 hours on LOW.

The sauce starts thick on purpose. In a sealed slow cooker the chicken, onion and vegetables release a lot of water and almost nothing evaporates, so this recipe uses only 1/2 cup of broth with the coconut milk. Whisking the spices into the liquid before anything else goes in gives you an even sauce with no raw, dusty curry taste.

Layering matters too. The sweet potato goes on the bottom, where the heat is strongest, and the cauliflower sits on top in large florets so it steams gently instead of boiling to mush.

Ingredient notes

Curry powder: any standard yellow or Madras-style curry powder works, and Madras runs a little hotter. Blends vary a lot in salt and heat, so taste before you add more salt at the end. Garam masala is optional but adds a warm note of cinnamon, clove and cardamom.

Coconut milk: use full-fat canned coconut milk, not the carton drink. Light coconut milk makes a thinner sauce that's more likely to look curdled after a long cook.

Chicken: boneless, skinless thighs cut into 1 1/2-inch chunks. Smaller pieces fall apart by dinnertime. Thaw the chicken completely in the fridge before it goes into the crock. The USDA advises thawing all meat before slow cooking, because meat that starts out icy spends too long between 40°F and 140°F while the cooker heats up.

Ginger and garlic: fresh gives a sharper, cleaner bite. In a pinch, use 1 tsp ground ginger and 1 tsp garlic powder.

Lime: I don't skip it. A sauce that has simmered all day tastes flat until it gets a hit of acid.

How to make slow cooker chicken curry

In the morning, whisk the coconut milk, broth, tomato paste and spices right in the crock until no streaks of paste remain. Stir in the onion, garlic and ginger, add the sweet potato, then the chicken, and stir to coat. Set the cauliflower on top. The crock should be between half and two-thirds full, which this amount is in a 6-quart cooker.

Cook on LOW for 6 to 7 hours or HIGH for 3 to 4 hours. It's done when a fork slides easily into the sweet potato and the thickest piece of chicken reads at least 165°F on an instant-read thermometer. Thighs get even more tender at 175°F to 185°F, which they'll reach on this timing.

To finish, stir gently, add the spinach and let it wilt under the lid for 5 minutes. If you want a thicker sauce, stir in the cornstarch slurry and cook on HIGH with the lid off until the sauce coats a spoon. Squeeze in the lime and taste for salt.

Common mistakes (and how to fix them)

Watery sauce: usually from extra broth added just in case, or vegetables cut very small. Stir in the cornstarch slurry, or cook on HIGH with the lid off for 30 minutes.

Split or grainy sauce: coconut milk can separate if it bubbles hard for hours, which happens more on HIGH or in cookers that run hot. Whisk it well after cooking. The slurry also pulls it back together.

Mushy cauliflower: the florets were too small or sank into the liquid. Cut them about 2 inches across and leave them on top. If you're home, add them for the last hour on LOW (45 minutes on HIGH).

Bland curry: it usually needs salt and acid, not more spice. Add salt 1/4 tsp at a time along with the lime. Curry powder that's been open for over a year also loses strength.

Dry chicken: breasts cooked for a full workday. Use thighs, or shorten the time (see substitutions).

What to serve with slow cooker chicken curry

Basmati or jasmine rice is the classic base. Start it on the stove 20 minutes before dinner, or set a rice cooker timer in the morning.

Warm naan is good for scooping up the sauce. Cucumber raita (grated cucumber, plain yogurt, salt and a pinch of cumin) cools the spice. For a lower-carb bowl, serve the curry over cauliflower rice.