Slow Cooker Cambodian Chicken Curry with Kroeung

This slow cooker Cambodian chicken curry is a gentle, coconut-rich Khmer-style stew with chicken, potatoes, carrots, and green beans, seasoned with kroeung, a fragrant lemongrass-based paste. Cambodian curry recipes vary by region and family; this practical version keeps the aromatic flavors while letting the slow cooker do most of the work.

Ingredients

2 stalks lemongrass, tough outer leaves removed and tender centers thinly sliced (about 30 g)
1 tablespoon peeled, chopped galangal (10 g); ginger is a practical substitute, though it tastes warmer and less piney
1 teaspoon ground turmeric (3 g)
4 garlic cloves, peeled (about 12 g)
2 small shallots, peeled and roughly chopped (about 75 g, or ½ cup)
1 teaspoon finely grated makrut lime zest (about 2 g); lime zest works if makrut lime is unavailable, but is less floral
1 small dried red chile, stem removed (about 1 g), or more to taste
2 tablespoons water (30 ml), for blending the kroeung
2½ pounds boneless, skinless chicken thighs, cut into 1½-inch pieces (1.13 kg)
1 pound waxy potatoes, such as Yukon Gold, cut into 1½-inch chunks (450 g)
2 medium carrots, cut into ½-inch slices (about 180 g)
½ cup low-sodium chicken broth (120 ml)
1 tablespoon fish sauce (15 ml)
1 tablespoon palm sugar or light brown sugar (12 g)
1 can unsweetened coconut milk, well shaken (13.5 fl oz / 400 ml)
1 cup trimmed green beans, cut into 2-inch lengths (125 g)
½ teaspoon fine salt (about 3 g), plus more to taste
1 tablespoon fresh lime juice (15 ml), plus lime wedges for serving
¼ cup loosely packed Thai basil leaves (about 8 g), or cilantro if needed

Instructions

Make the kroeung. Add the lemongrass, galangal, turmeric, garlic, shallots, makrut lime zest, dried chile, and water to a small food processor or sturdy blender. Process, scraping down the sides as needed, until the mixture becomes a thick, finely minced paste. It does not need to be completely smooth. If your appliance struggles, add another teaspoon of water; keep the paste concentrated rather than turning it into a thin liquid. This step takes about 8 minutes.
Load the slow cooker. Put the chicken, potatoes, and carrots in a 5- to 6-quart slow cooker. Add the kroeung, broth, fish sauce, palm sugar, and salt. Stir carefully so the paste and seasonings coat the chicken and vegetables. The mixture will look fairly dry at this stage; the chicken releases juices as it cooks, and the coconut milk is added later.
Cook until the chicken is tender. Cover and cook on LOW for 4 hours. Keep the lid on as much as possible because each opening releases heat and lengthens the cooking time. Slow cookers vary, so check that the largest chicken pieces have reached 165°F (74°C) with a food thermometer; USDA FSIS identifies 165°F (74°C) as the safe minimum internal temperature for poultry. If they have not, continue cooking and check again after 15 minutes.
Add the coconut milk and beans. Stir in the coconut milk and green beans, taking care not to break up the potatoes. Cover and cook on LOW for 30 minutes, until the beans are tender but still hold their shape and the curry is hot throughout. If the chicken reached its safe temperature before this point, the final covered cook warms the added ingredients and finishes the vegetables.
Balance and serve. Stir in the lime juice and basil. Taste the sauce and adjust with a little more fish sauce for savory depth, lime juice for brightness, or sugar if the aromatics taste sharp. Let the curry stand for 5 minutes with the cooker switched off before serving; this short pause lets the sauce settle. Serve hot, checking a chicken piece from the center of the cooker if you need to confirm its temperature again.

Tips

Use the right cut. Boneless thighs stay tender through a long, moist cook and are less likely to dry out than chicken breast. If you use bone-in thighs, remove the bones before serving and expect a little more variation in cooking time; always check the thickest meat with a thermometer.
Keep the vegetables chunky. Cut potatoes into similar-sized pieces so they cook evenly. Waxy potatoes hold their shape better than very floury varieties. Avoid small dice, which can soften or break apart during the extended cooking.
Choose a sensible paste shortcut. If lemongrass or galangal is hard to find, use about 3 tablespoons (45 g) of prepared Cambodian kroeung paste if available. Otherwise, use 2 tablespoons (30 g) Thai red curry paste as a shortcut; it brings a different, often hotter and less citrusy flavor, so start with less and adjust at the end. Prepared pastes vary in salt and chile strength, so reduce added salt and taste before serving.
Keep coconut milk from separating. Stir it in near the end rather than cooking it for the full four hours. A little surface separation is harmless; stir gently before serving. Do not use coconut cream in the same quantity unless you want a much richer, thicker sauce.

Serving Suggestions

Serve the curry in wide bowls with steamed jasmine rice, which catches the fragrant coconut sauce. Cambodian meals may also include rice noodles or pieces of crusty baguette for dipping; both make good alternatives when you want something other than rice. Put lime wedges and extra basil or cilantro on the table so everyone can brighten their own portion.

For a fuller meal, pair it with a simple cucumber salad or lightly dressed greens. Their cool, crisp texture offsets the soft potatoes and rich sauce without competing with the lemongrass. If serving a group, keep the curry on the slow cooker’s warm setting only while people are eating, and avoid leaving it at room temperature for an extended period.

Variations

Adjust the heat: Leave out the dried chile for a mild curry, or add another small chile to the kroeung for more warmth. The heat of dried chiles varies, so adding gradually is safer than guessing with a large amount. This is intended as a fragrant, gently spiced curry rather than a very hot one.

Change the vegetables: Replace the green beans with 1 cup (about 150 g) of sliced bamboo shoots, drained, or add 1 cup (100 g) of sliced eggplant. Bamboo shoots are a traditional ingredient in some Cambodian curry versions and have a firm, earthy bite; add them with the coconut milk. Eggplant softens more quickly, so cut it into large pieces and add it during the final 30 minutes.

Make it without fish sauce: Substitute 1 tablespoon (15 ml) of light soy sauce, then taste before adding more salt. This provides savory seasoning but changes the flavor and is not a traditional fish-sauce replacement. For a vegetarian-style variation, use vegetable broth and replace the chicken with 1 pound (450 g) of firm tofu and 1 can of drained chickpeas (about 240 g); add these with the coconut milk so they do not become overly soft. The result is a different dish, but it uses the same aromatic curry base.

Use chicken breast carefully: Breast meat can be used, but it is leaner and more prone to drying. Cut it into large pieces, begin checking the temperature before the four-hour mark, and stop the initial cooking once it reaches 165°F (74°C). Add the coconut milk and beans for the final 30 minutes as directed, making sure the curry is hot before serving.

Storage and Reheating

Refrigerate leftover curry within 2 hours of cooking, divided into shallow, covered containers so it cools promptly. It keeps for 3 to 4 days in the refrigerator. The potatoes may absorb some sauce while chilled, and the coconut milk can separate slightly; both are normal. For longer storage, freeze it in airtight, freezer-safe containers for up to 3 months. Thaw frozen portions in the refrigerator overnight for more even reheating.

Reheat only the portion you plan to eat, either in a saucepan over medium-low heat or in the microwave, stirring occasionally. Add a splash of water or broth if the sauce has thickened. Heat leftovers to 165°F (74°C), checking the center with a food thermometer, as recommended by USDA FSIS. Avoid repeatedly cooling and reheating the whole batch; divide it into meal-size portions instead.

Frequently Asked Questions

What is kroeung? Kroeung is a Cambodian aromatic paste, commonly made from lemongrass, galangal, turmeric, garlic, and shallot, with other ingredients varying by cook and dish. It gives this curry its distinctive citrusy, herbal foundation. A food processor makes a small batch manageable, though the texture can remain a little coarse.

Can I use store-bought curry paste? Yes. Prepared Cambodian kroeung paste is the closest shortcut if you can find it. Thai red curry paste is easier to locate but changes the flavor, often adding more chile and a different herb profile. Start with 2 tablespoons, check its salt level, and adjust after the curry finishes cooking.

Can I cook this on HIGH instead? The recipe is written for LOW because the longer, gentler cook gives the chicken and vegetables time to become tender without requiring close attention. Slow cooker temperatures differ, and a high setting may finish sooner, so begin checking the chicken and potatoes after about 2 hours. Do not serve poultry until it reaches 165°F (74°C), and add the coconut milk and beans only for the final 30 minutes.

Why add coconut milk near the end? Long cooking can make coconut milk separate or develop an oily appearance. Adding it for the final half hour helps keep the sauce creamy. If slight separation happens, gently stir the curry; it does not mean the dish has spoiled.

Can I prepare the curry paste ahead? You can blend the kroeung up to 2 days ahead and keep it covered in the refrigerator. You can also freeze the paste in a small airtight container for up to 3 months, then thaw it in the refrigerator. Keep raw chicken separate and refrigerated until you are ready to assemble the slow cooker.

Is this curry very spicy? It is mildly spicy with one small dried chile, but chile strength varies. For a gentle flavor, remove the chile seeds or leave the chile out entirely. Anyone who wants extra heat can add sliced fresh chile at the table, making it easy to serve the same batch to people with different preferences.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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