Slow Cooker Beef Massaman Curry – Easy Set-and-Forget Dinner

This is what happens when you leave a tough chuck roast alone with coconut milk, peanuts and a spice drawer for the better part of a day. The result is beef that gives up entirely under a spoon, potatoes that hold their shape, and a sauce that tastes like it simmered for hours because, well, it did.

The order of operations matters more than the effort here. You brown the beef first, because browning is flavor and a slow cooker will not do it for you. You bloom the curry paste in the same pan, because dry paste tastes like dust and hot paste tastes like dinner. After that, you walk away.

Fair warning on the most common failure: adding all the coconut milk at the start. It splits and goes grainy over six hours. Keep a cup back and stir it in at the end, and you get that glossy, creamy finish you were promised.

About the Ingredients

3 lb (1.35 kg) beef chuck roast, cut into 1 1/2-inch chunks

Chuck is the right cut because it has enough connective tissue to survive long cooking. If chuck is unavailable, beef short ribs work well, though you will want to skim more fat at the end.

2 tbsp neutral oil, divided

Canola, vegetable or refined coconut oil all work. Avoid olive oil here, since it smokes before you get a proper sear.

1/3 cup (80 g) Massaman curry paste

Maesri or Mae Ploy are reliable grocery-store brands. If you only have red curry paste, add 1/2 tsp ground cinnamon and a pinch of cardamom to approximate the profile.

2 cans (13.5 oz / 400 ml each) full-fat coconut milk, divided

Full-fat is not negotiable for a creamy sauce; light coconut milk turns thin and slightly chalky. Shake the cans well before opening, as the cream separates at the top.

1 1/2 lb (680 g) Yukon Gold potatoes, cut into 1-inch chunks

Yukon Golds hold their shape better than russets in a long braise. If using russets, add them in the last two hours of cooking instead of the start.

1 medium yellow onion, cut into 1-inch wedges

Keep the root end intact when cutting so the wedges stay together. Shallots are a fine swap, but use four of them.

3 tbsp creamy peanut butter

Natural peanut butter gives the most peanut flavor; conventional sweetened peanut butter works but adds sugar. Almond butter is a decent substitute if there is a peanut allergy in the house.

1 tbsp fish sauce, plus more to taste

Three Crabs or Red Boat are worth the shelf space. Soy sauce is the vegetarian stand-in, though it lacks the same funk.

1 tbsp packed brown sugar

Palm sugar is traditional and gives a rounder sweetness. Dark brown sugar is the closest supermarket substitute.

1 cinnamon stick, 3 green cardamom pods, 2 star anise

Whole spices are the backbone of Massaman. If you only have ground, use 1/2 tsp cinnamon and 1/4 tsp cardamom, added with the curry paste.

1/2 cup (120 ml) beef broth

Water works in a pinch, but broth adds body. Low-sodium is preferable since the fish sauce brings plenty of salt.

1/4 cup (35 g) roasted peanuts, roughly chopped, plus lime wedges to serve

Roasted unsalted peanuts let you control the seasoning. Cashews are a fine substitute and slightly sweeter.

Tips & Tricks

• Do not dump all the coconut milk in at once. Reserve 1 cup and stir it in after the slow cooker is off; the sauce stays smooth and glossy instead of splitting.
• Brown the beef in batches and do not crowd the pan. Crowding steams the meat, and steamed beef gives you gray cubes and no fond for the curry paste to bloom in.
• Add the potatoes at the start only if they are waxy. Russets will disintegrate into the sauce, which some people love and others call gravy.

Step-by-Step Instructions

1. Gather and prep

Set out a 6-quart slow cooker, a large heavy skillet, tongs, a wooden spoon and a cutting board. Cut the beef, potatoes and onion before you turn on any heat, because once the searing starts you will not have a free hand.

2. Sear the beef

Heat 1 tbsp oil in the skillet over medium-high heat (about 400F / 205C) and brown the beef in three batches, 3 to 4 minutes per side, until deeply golden brown on at least two sides. Transfer each batch to the slow cooker.

3. Bloom the paste

Lower the heat to medium (about 350F / 175C), add the remaining oil, the curry paste and the whole spices, and fry for 60 to 90 seconds until fragrant and slightly darkened at the edges. Do not let it burn, or the whole pot tastes bitter.

4. Deglaze the pan

Pour in the beef broth and scrape up the browned bits with a wooden spoon for about 30 seconds, until the liquid is bubbling at the edges and the pan looks clean. Pour everything into the slow cooker.

5. Build the curry

Add one can of coconut milk, the peanut butter, fish sauce and brown sugar to the slow cooker. Stir until the peanut butter dissolves, then nestle in the potatoes and onion so they are mostly submerged.

6. Slow cook

Cover and cook on low for 6 to 7 hours, until the beef shreds under light pressure from a fork and the potatoes slide off a knife. Check at 6 hours; slow cookers vary more than their manufacturers admit.

7. Finish the sauce

Switch off the heat, remove the whole spices, and stir in the reserved cup of coconut milk. Taste and adjust with fish sauce, sugar and a squeeze of lime until the sauce is rich, salty and slightly tart.

8. Serve

Spoon over jasmine rice and scatter with chopped roasted peanuts and lime wedges. The curry should be thick enough to mound slightly on the rice rather than flood it.

Delicious Variations

Chicken Massaman

Swap the chuck for 2 lb boneless chicken thighs and cook on low for 3 to 4 hours, since thighs give up much sooner than beef.

Vegetarian Massaman

Use 2 lb butternut squash and a can of chickpeas instead of beef, skip the fish sauce for soy, and cook on low for 4 hours.

Extra-Spicy Massaman

Add 2 dried red chiles with the whole spices and a teaspoon of chili flakes at the finish, tasting as you go.

How to Store Slow Cooker Beef Massaman Curry

Frequently Asked Questions

Start this before lunch and dinner is essentially a formality. If you make it, tell me whether you went with chuck or short ribs, because I have opinions and I am willing to share them.

Slow Cooker Beef Massaman Curry

Slow Cooker Beef Massaman Curry delivers fall-apart beef in a creamy coconut peanut sauce with potatoes and warm spices, all from one pot.

★★★★½ 4.8 (214 ratings)

25 minPrep time390 minCook time8Servings512 kcalCalories

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🧂 Ingredients

• 3 lb (1.35 kg) beef chuck roast, cut into 1 1/2-inch chunks
• 2 tbsp neutral oil, divided
• 1/3 cup (80 g) Massaman curry paste
• 2 cans (13.5 oz / 400 ml each) full-fat coconut milk, divided
• 1 1/2 lb (680 g) Yukon Gold potatoes, cut into 1-inch chunks
• 1 medium yellow onion, cut into 1-inch wedges
• 3 tbsp creamy peanut butter
• 1 tbsp fish sauce, plus more to taste
• 1 tbsp packed brown sugar
• 1 cinnamon stick, 3 green cardamom pods, 2 star anise
• 1/2 cup (120 ml) beef broth
• 1/4 cup (35 g) roasted peanuts, roughly chopped, plus lime wedges to serve

📋 Instructions

1. 1Gather and prep — Set out a 6-quart slow cooker, a large heavy skillet, tongs, a wooden spoon and a cutting board. Cut the beef, potatoes and onion before you turn on any heat, because once the searing starts you will not have a free hand.
2. 2Sear the beef — Heat 1 tbsp oil in the skillet over medium-high heat (about 400F / 205C) and brown the beef in three batches, 3 to 4 minutes per side, until deeply golden brown on at least two sides. Transfer each batch to the slow cooker.
3. 3Bloom the paste — Lower the heat to medium (about 350F / 175C), add the remaining oil, the curry paste and the whole spices, and fry for 60 to 90 seconds until fragrant and slightly darkened at the edges. Do not let it burn, or the whole pot tastes bitter.
4. 4Deglaze the pan — Pour in the beef broth and scrape up the browned bits with a wooden spoon for about 30 seconds, until the liquid is bubbling at the edges and the pan looks clean. Pour everything into the slow cooker.
5. 5Build the curry — Add one can of coconut milk, the peanut butter, fish sauce and brown sugar to the slow cooker. Stir until the peanut butter dissolves, then nestle in the potatoes and onion so they are mostly submerged.
6. 6Slow cook — Cover and cook on low for 6 to 7 hours, until the beef shreds under light pressure from a fork and the potatoes slide off a knife. Check at 6 hours; slow cookers vary more than their manufacturers admit.
7. 7Finish the sauce — Switch off the heat, remove the whole spices, and stir in the reserved cup of coconut milk. Taste and adjust with fish sauce, sugar and a squeeze of lime until the sauce is rich, salty and slightly tart.
8. 8Serve — Spoon over jasmine rice and scatter with chopped roasted peanuts and lime wedges. The curry should be thick enough to mound slightly on the rice rather than flood it.

👨‍🍳 Chef's Note: Measure twice, then measure again.

Servings: 8

Cuisine: Thai

Course: Main Course

Nutrition (per serving): 512 kcal · 34g protein · 24g carbs · 31g fat

Written by Tomas Lindqvist

Tomas writes about home repair and small-scale building projects, focused on what a careful beginner can actually finish. He explains tools and materials by what they do rather than by brand, and he walks through mistakes he has made on his own projects. His angle is honest sequencing: what to do first, what to skip, and when to call someone else.