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This is the kind of pasta that hits every single note you want from a good dinner. It’s creamy without being heavy. It’s spicy without being overwhelming. The shrimp are juicy and perfectly seasoned with that gorgeous Cajun kick, the sauce is rich and velvety and clings beautifully to every strand of pasta, and the whole thing has this incredible depth of flavour that tastes like it took way more effort than it actually did. It’s the sort of meal that makes people ask you for the recipe before they’ve even finished their bowl.

The secret to this dish is layering the flavours properly. We season the shrimp separately before searing them, which means every single prawn is packed with flavour all the way through. Not just coated on the outside. We build the sauce base with sautéed garlic, onion, and red bell pepper, which adds sweetness and body to balance out the heat from the Cajun seasoning and cayenne. And then there’s the pasta water. This is the little trick that takes the sauce from good to genuinely great. The starchy pasta water emulsifies into the cream sauce and gives it that silky, glossy, restaurant-quality consistency that coats the pasta beautifully rather than sitting in a pool at the bottom of the bowl.

I make this recipe on nights when I want something that feels special but I genuinely don’t have the time or energy for anything complicated. It’s become one of my most-made weeknight dinners because it’s fast, it’s deeply satisfying, and it uses ingredients I almost always have on hand. It also scales up really easily if you’re cooking for a crowd. Just double everything and use a bigger pan.

A couple of things to know before you start. First, don’t overcook your shrimp. This is the single most important thing. Shrimp cook incredibly quickly and overcooked shrimp go from plump and juicy to rubbery and sad in a matter of seconds. Watch them closely and pull them off the heat the moment they turn pink and curl into a loose C shape. Second, save your pasta water before you drain the pasta. I know it sounds like a small thing but it genuinely makes such a difference to the final sauce. The starch in the water helps bring everything together into a cohesive, glossy sauce rather than a greasy or separated one. And third, taste as you go. Cajun seasoning varies quite a bit in saltiness and heat between different brands, so always taste and adjust rather than just following the quantities blindly.

This recipe is going to become a regular in your dinner rotation. I’m almost certain of it.

Ingredients

For the shrimp:

14 shrimp, peeled and deveined
1/2 tsp Salt
1/2 tsp Black pepper
1 tsp Cajun seasoning

For the pasta and sauce:

140g pasta of your choice
3 tbsp olive oil
1 tbsp garlic, minced
1/3 cup onion, finely diced
1/3 cup red bell pepper, finely chopped
1/2 tsp salt
1/2 tsp smoked paprika
1/2 tsp chilli flakes
1/2 tsp Cajun seasoning
1/4 tsp cayenne pepper
1/2 tsp dried parsley
Salt to taste
Black pepper to taste
1/2 cup thickened cream
1/2 cup pasta water, reserved before draining (add gradually)

To finish:

Chilli flakes, to garnish
Dried parsley, to garnish

Instructions

1. Prepare your ingredients

Before you turn on any heat, get everything prepped and ready. Peel and devein your shrimp if they aren’t already. Mince your garlic finely. You want it small enough that it melts into the sauce rather than sitting in noticeable chunks. Finely dice your onion and chop your red bell pepper into small, even pieces so they cook at the same rate. Measure out all your spices and set them aside together in a small bowl so you can add them all at once when the time comes. This makes the cooking process much smoother and less stressful.

This dish moves quite quickly once you start cooking, so having everything prepped and within arm’s reach before you turn on the stove makes a huge difference. Don’t skip this step.

❤️ Tip: If your shrimp are frozen, thaw them in a bowl of cold water for about 10–15 minutes rather than in the microwave. Cold water thawing is much gentler and keeps the shrimp plump and juicy rather than partially cooking them unevenly. Pat them thoroughly dry with paper towel before seasoning. Dry shrimp sear beautifully, wet shrimp steam instead of sear and you won’t get that gorgeous golden crust.

2. Cook the pasta

Bring a large pot of water to a rolling boil. Add a generous amount of salt. The water should taste properly seasoned, almost like mild seawater. This is your only real opportunity to season the pasta itself from the inside, so don’t be shy with the salt here.

Add your 140g of pasta and cook according to the packet instructions until just al dente, meaning it still has a very slight bite in the very centre when you test it. It will continue cooking a little when you add it to the sauce, so pulling it out just before it’s fully done is the move here.

Before you drain the pasta, scoop out at least 1/2 cup of the pasta cooking water and set it aside in a small bowl or mug. This starchy liquid is liquid gold for your sauce. Don’t forget this step or you’ll regret it later. Then drain the pasta and set aside.

❤️ Tip: If you’re worried about your pasta sticking together while you finish the sauce, toss it with just a tiny drizzle of olive oil after draining. However, don’t add too much. A heavily oiled pasta surface can actually prevent the sauce from clinging properly.

3. Season and sear the shrimp

Pat your shrimp dry with paper towel. This step is really important and worth repeating. Dry shrimp sear. Wet shrimp steam. You want to sear.

Season your shrimp generously on both sides with 1/2 tsp salt, 1/2 tsp black pepper and 1 tsp Cajun seasoning. The shrimp are the star of this dish and they need to be properly seasoned to carry the flavour of the whole bowl.

Heat 2 tbsp of olive oil in a large, wide pan or skillet over medium-high heat until the oil is hot and shimmering. Add the shrimp in a single layer. Don’t overcrowd the pan. If they don’t all fit, cook them in two batches. Cook for about 1–1.5 minutes on the first side without moving them, until they develop a lovely golden sear on the bottom. Then flip each shrimp individually and cook for another 1 minute on the other side.

The shrimp are done when they’ve turned pink and opaque all the way through and have curled into a loose C shape. Remove them from the pan immediately and set them aside on a plate. Do not leave them in the pan. Residual heat will keep cooking them and you’ll end up with rubbery shrimp.

❤️ Tip: Watch your shrimp closely and don’t walk away from the pan during this step. The difference between perfectly cooked and overcooked shrimp is literally 30 seconds. A perfectly cooked shrimp will curl into a C shape. If it curls all the way into a tight O shape, it’s overcooked. Pull them off the heat a little earlier than you think you need to, as they’ll carry over cook slightly from the residual heat.

4. Sauté the aromatics

In the same pan you cooked the shrimp in, add the remaining 1 tbsp of olive oil over medium heat. All those little golden bits left behind from the shrimp are packed with flavour. You want them to stay in the pan.

Add your diced onion, chopped red bell pepper and minced garlic. Sauté, stirring occasionally, for about 2 minutes until fragrant. Be careful not to let the garlic burn — burnt garlic turns bitter and will affect the whole sauce. If the pan looks too dry at any point, add a tiny splash of water or pasta water to loosen things up.

5. Add the spices

Once your aromatics are soft and fragrant, add the 1/2 tsp smoked paprika, 1/2 tsp chilli flakes, 1/2 tsp Cajun seasoning, 1/4 tsp cayenne pepper, 1/2 tsp dried parsley, 1/2 tsp salt directly into the pan. Stir everything together well and cook the spices in the oil and vegetables for about 60 seconds, stirring constantly.

This step is called blooming your spices and it makes a genuinely noticeable difference to the depth of flavour in the finished sauce. Cooking the spices briefly in the hot oil activates and intensifies their flavour compounds in a way that just adding them to liquid doesn’t achieve. You’ll notice the pan smells absolutely incredible at this point. That’s exactly what you want.

❤️ Tip: Different brands of Cajun seasoning vary quite a lot in saltiness and heat level, so always taste your sauce before adding any extra salt. Some Cajun seasonings are very salty and you won’t need to add any additional salt at all, while others are more herb-forward and less salty. Taste first, season second.

6. Build the cream sauce

Pour in your 1/2 cup of thickened cream and stir well to combine with the spiced vegetable base. Let the cream come up to a gentle simmer over medium heat, stirring frequently. Once it’s simmering, let it bubble away for about 2–3 minutes, stirring occasionally, until it has reduced slightly and thickened enough to lightly coat the back of a spoon.

Taste the sauce at this point and adjust the seasoning if needed. More Cajun seasoning for extra heat and flavour, more salt if it needs it, a tiny pinch more cayenne if you like things spicier.

❤️ Tip: Don’t let the cream boil aggressively. A gentle simmer is all you need. Hard boiling can cause the cream to reduce too quickly or even split, especially if you then add the acidic pasta water. Keep the heat at medium and let it reduce gently and gradually for the best result.

7. Bring it all together

Add your cooked pasta directly into the sauce and toss well to coat every strand thoroughly. Now start adding your reserved pasta water a little at a time. Pour in a splash, toss the pasta through the sauce, and assess the consistency. You’re looking for a sauce that’s creamy, glossy, and clings beautifully to the pasta without being thick and gloopy or thin and watery. Keep adding the pasta water gradually and tossing as you go until you reach that perfect consistency. You may not need all of the pasta water. Just use as much as you need.

Add your cooked shrimp and pasta back into the pan and toss gently to combine and warm through for about 30–60 seconds.

❤️ Tip: Adding the pasta water gradually rather than all at once gives you complete control over the final consistency of your sauce. Every pasta shape holds sauce differently and every stove runs at a slightly different heat, so the amount of pasta water you need will vary. Add a little, toss, assess, and repeat until you’re happy with how it looks.

8. Garnish and serve

Divide the pasta between bowls and finish with a pinch of chilli flakes and a scattering of dried parsley. Serve immediately while the sauce is at its creamiest and the shrimp are still perfectly juicy.

Extra Tips

1. Don’t overcook the shrimp

Overcooked shrimp are rubbery, tough, and really unpleasant to eat, and it happens incredibly fast. Watch them closely and remove them from the pan the second they turn pink and curl into a loose C shape. They go back into the pan at the very end just to warm through, so they’ll be perfectly juicy and tender by the time you serve.

2. Save your pasta water — seriously

If there’s one thing in this recipe you absolutely cannot skip, it’s saving the pasta water. The starch in pasta cooking water is what emulsifies the cream sauce and gives it that silky, glossy, restaurant-quality consistency. Plain water from the tap does not work the same way. Set a reminder to scoop it out before you drain the pasta if you have to. You’ll be so glad you did.

3. Adjust the heat to your taste

This recipe as written has a moderate level of heat. Noticeable and warming but not overwhelming. If you love spicy food, feel free to increase the cayenne to 1/2 tsp or add extra Cajun seasoning to taste. If you’re cooking for kids or people who are sensitive to spice, reduce the cayenne to just a pinch or leave it out entirely. The smoked paprika and Cajun seasoning will still give you loads of flavour without the heat.

4. Variations and additions

This recipe is a brilliant base that you can customise in so many different ways. Swap the shrimp for diced chicken thigh or sliced chorizo for a completely different but equally delicious version. Add a handful of baby spinach or some sliced mushrooms into the sauce with the aromatics for extra vegetables. Stir through a handful of freshly grated parmesan at the very end for an extra layer of richness and saltiness. Squeeze a little fresh lemon juice over the top just before serving to brighten up all the flavours. It makes a surprising difference.

20 Min Cajun Shrimp Pasta

Ingredients