Slow Cooker Lamb Curry

Our slow cooker lamb curry is just what you need to warm up and satisfy those cravings for a comforting meal. The slow cooker helps create tender lamb in a thick, rich, flavourful sauce.

Top it off with fresh coriander and serve with pilau rice, chapati bread, and onion bhajis – trust me, you’ll be returning to this recipe repeatedly. We alternate between our slow cooked lamb curry and our slow cooker chicken curry.

Jump to:

• 📖 Step by Step Recipe
• Ingredients in Detail
• Preperation
• Adjust the heat levels
• Cooking Time
• Serving Suggestions
• Storage
• Reheating
• 💬 Reviews

The recipe’s at the top so that you can dive straight in. Keep scrolling for tips, variations, and serving ideas to help you make your slow cooker lamb curry flawless!

📖 Step by Step Recipe

Ingredients in Detail

Each ingredient in this slow cooker lamb curry plays it part in creating a rich flavour and texture dish. I won't go over them all, but here are some essential things to note.

Lamb

The star of the dish, diced lamb, becomes melt-in-your-mouth tender after slow cooking.

We prefer cutting it from a boneless leg of lamb to create lovely, big pieces that hold their shape beautifully during cooking. However, buying pre-diced lamb is a convenient option if you’re short on time, though these chunks are often smaller.

Either way, the rich flavour of lamb pairs perfectly with the robust spices in the curry.

Chillies

Green finger chillies are key to adding a fresh heat kick to the curry. They infuse the dish with just the right amount of spice. We like to use finger chillies because they are easily accessible, have a moderate heat level, and add a fresh, bright flavour to the curry.

We typically slice the chillies lengthwise and add them whole to the slow cooker for this recipe. This method gradually releases the chillies' heat and flavour, giving the curry a well-rounded spice.

You can adjust the number of chillies or experiment with other varieties to suit your taste. Here’s our guideline for finger chillies:

• 1 chilli combined with the medium curry powder will result in a medium-heat curry—perfect for those who enjoy a little spice without overwhelming heat.
• 2 chillies create a medium-hot curry for those who like a bit more of a kick.
• 3 chillies will give you a nice hot lamb curry. You can increase the number of chillies to your liking.

You can swap finger chillies for alternatives like jalapeños (milder), serrano peppers (similar heat), or bird’s eye chillies (hotter). Tailor the spice level to suit your taste.

Curry Powder

Curry powder is the backbone of this slow cooker lamb curry, providing a blend of warming, aromatic spices.

We’ve chosen medium curry powder for this recipe, as it offers a balanced heat level—warm and flavorful without being overly fiery.

One of the great things about curry powder is its versatility. You can easily adjust the overall heat of your dish by choosing a blend that suits your taste. Here’s a quick guide to the types of curry powders available:

• Mild curry powder is perfect for those who prefer a more subtle spice with an emphasis on flavour rather than heat.
• Medium curry powder is a well-rounded option, offering just the right warmth to please most palates.
• Hot curry powder is for those who love a spicy kick, and hot blends include additional chili powder or cayenne pepper for extra heat.

Coconut Milk

Coconut milk adds creaminess, subtle sweetness, and a silky texture that enhances the lamb curry. Unlike yoghurt, it stays stable in the slow cooker, making it perfect for a rich, consistent sauce.

It is best to use full-fat coconut milk for the richest results! Reduced-fat coconut milk will work but do note that it contains more water and will make the end result of a thinner curry sauce than seen in this post.

Preperation

Lets talk about how to prepare this lamb curry for the slow cooker.

Why we fry and sear ingredients first?

Preparing your ingredients before slow cooking, like frying onions and garlic and curry powder, and searing the lamb, is key to building depth and richness in your curry.

Sautéing onions caramelizes their natural sugars, enhancing the sweetness and complexity of the dish.

Heat activates the curry powder spices, intensifying their aroma and flavour. This step transforms the raw, powdered taste into a deep, well-rounded spice profile.

Searing the lamb locks in juices and adds a delicious flavour that elevates the curry.

While the recipe will still work with a "dump-and-go" approach, the flavours won’t develop as fully. Skipping this step can leave the dish tasting flat, lacking the rich layers of flavour achieved through proper preparation.

For the most delicious results, take the extra time to prepare your ingredients the way we have. It’s worth it!

Adjust the heat levels

Curry powder provides a deep, consistent dry warmth that forms the dish’s base flavour, while fresh chillies add a sharper, fresh heat kick. Together, they balance and enhance the overall spice profile of the curry.

You can create a perfectly tailored curry by experimenting with both elements. See the above ingredient advice on chillies and curry powder to use.

Put simply, if you want a milder curry? Use mild curry powder and skip the chillies. Would you prefer something bolder? Opt for hot curry powder and include an extra finger chilli during cooking.

Let everyone adjust the spice level to their liking for even more flexibility.

After the curry has finished cooking, add fresh chopped chillies or a sprinkle of chilli powder directly to individual portions for those who prefer extra heat. This way, you can cater to different tastes without altering the entire dish, ensuring everyone at the table is happy.

Cooking Time

For the best results, we always recommend using the low setting for this slow cooker lamb curry. Cooking on low for 6 ½ hours allows the lamb to break down beautifully, resulting in tender, melt-in-your-mouth pieces that absorb all the rich flavours of the curry.

If you’re short on time, you can cook the curry on high for 4 hours, but the texture and depth of flavour won’t quite match the magic of the low-and-slow method. Plan for 6 hours of cooking whenever possible, and let the slow cooker work its magic.

Serving Suggestions

Let's get this lamb curry served! We served ours with chapati bread, onion bhajis, and our curried rice (recipe coming soon).

Pair this curry with fluffy basmati rice, and a side of saag bhaji, or crunchy poppadoms with Indian salad of onions tomatoes and cucumber, mint raita and mango chutney for a complete meal.

Storage

Keep leftovers in an airtight container in the fridge, where it will keep up to three days.

Want to store for longer, freeze them in portions for up to three months.

Reheating

Reheat the curry gently in a pan on the hob or in the microwave, stirring regularly to heat evenly.