Spicy Prawn (Shrimp) Pasta: Garlicky Chilli Tomato, 25 Min

This spicy prawn pasta is built around one idea: heat that has flavour behind it. Garlic and chilli flakes are warmed in olive oil, tomatoes cook down into a thick, glossy sauce, and quickly seared prawns get tossed through at the very end. It takes about 25 minutes, uses a handful of pantry ingredients, and the heat level is completely in your hands.

If you like the idea of a tomato sauce but want more bite than our tomato prawn pasta, this is the version to make. It is closer to a prawn arrabbiata than a gentle weeknight sauce.

 And if you would rather have your spice in cream, look at the Cajun prawn pasta or the creamy chilli garlic prawn pasta instead.

What Makes This Spicy Prawn Pasta Different

Most spicy pasta recipes add chilli at one point and hope for the best. Here the chilli goes in at three stages, and each does a different job:

• On the prawns: a small amount of chilli flakes with salt, so the heat sits on the surface and hits first.
• In the oil: the main chilli goes into warm oil with the garlic, which spreads a rounded heat through the whole sauce.
• At the end: a taste-and-adjust step, because heat builds as a sauce reduces and the flavour you tasted at the start is not the flavour you end with.

That last step is why people often end up with a dish that is either bland or painfully hot. Adjusting at the end avoids both.

Prawns or Shrimp?

The two words describe the same thing in this recipe. Prawn is the everyday word in the UK, Australia, India and many other countries, while shrimp is the everyday word in the US and Canada. Use whichever your shop sells, as long as they are raw and peeled. Medium to large ones are easiest to cook evenly and to catch on a fork with the pasta. The timings below work for both.

Ingredients You'll Need

This makes two generous servings.

• 200 g spaghetti, linguine or penne
• 250 g raw prawns (shrimp), peeled and deveined
• 2 tablespoons olive oil, divided
• 1 to 2 teaspoons chilli flakes, divided (see the heat guide below)
• 4 cloves garlic, thinly sliced
• 1 tablespoon tomato paste
• 400 g tin chopped tomatoes
• 1/2 teaspoon dried oregano
• 1/2 teaspoon sugar (optional, to balance acidity)
• 60 ml reserved pasta water
• Salt, to taste
• Fresh basil or parsley and a squeeze of lemon, to finish
• Grated parmesan, optional

A few notes:

• Tomatoes: Good tinned tomatoes make a real difference, because there are so few ingredients. Whole peeled tomatoes crushed by hand also work, and passata is a fine shortcut.
• Tomato paste: Cooking it for a minute before adding the tomatoes deepens the colour and takes away the raw taste.
• Parmesan: Cheese on seafood pasta is not traditional in Italy, so treat it as optional. Some people love it, and others prefer the clean chilli and tomato flavour without it.

A Quick Guide to Chilli Heat

The type of chilli you use changes the flavour as well as the heat, so it is worth choosing deliberately.

• Chilli flakes (crushed red pepper): The easiest option and very reliable. Half a teaspoon is mild, one teaspoon is medium and two teaspoons is properly hot. Brands vary, so start lower if yours is new to you.
• Fresh red chillies: Slice one or two and add them with the garlic. They give a brighter, fresher heat. Much of the heat sits in the seeds and the white pith inside, so remove them for a gentler result and keep them for a hotter one.
• Chilli paste: A spoonful of a fruity chilli paste such as Calabrian chilli paste adds both heat and depth. Start with half a teaspoon and taste.
• Hot sauce: Useful as a last-minute fix at the table, but it adds vinegar, so add it in small amounts.

If you are cooking for people with different tastes, keep the sauce at medium and set out extra flakes or hot sauce at the table.

How to Make Spicy Prawn Pasta

Step-by-Step Instructions

1. Cook the pasta. Boil it in well-salted water until about one minute short of al dente. Reserve a cup of the pasta water before draining.
2. Season the prawns. Pat the prawns very dry with kitchen paper. Toss them with a pinch of salt, half a teaspoon of the chilli flakes and one tablespoon of the olive oil.
3. Sear the prawns. Heat a large wide pan over medium-high heat. Cook the prawns in a single layer for about one minute per side, until just pink and curled. Move them to a plate. They will finish cooking in the sauce, so do not cook them through.
4. Warm the oil. Turn the heat to medium-low and add the remaining tablespoon of oil. Add the sliced garlic and the rest of the chilli flakes. Cook gently for 30 to 45 seconds, just until fragrant. Do not let the garlic brown.
5. Cook the paste. Stir in the tomato paste and cook for about a minute, stirring, until it darkens slightly.
6. Simmer the sauce. Add the chopped tomatoes, oregano, a good pinch of salt and the sugar if using. Simmer over medium heat for 10 to 12 minutes, stirring now and then, until the sauce thickens and the oil starts to shimmer at the edges.
7. Combine. Add the pasta and 60 ml of the pasta water. Toss for a minute until the sauce clings to the pasta and looks glossy. Add the prawns with any juices from the plate and toss for another 30 to 60 seconds, just to warm them through.
8. Taste and adjust. Add salt, a squeeze of lemon and a little more chilli if you want it hotter. Finish with fresh basil or parsley and serve straight away.

Why This Method Works

Garlic goes in gently. Thinly sliced garlic burns quickly and turns bitter. Adding it to warm rather than smoking oil, and keeping the heat low, gives you a sweet garlic flavour that supports the chilli instead of fighting it.

Chilli blooms in oil. The compounds that give chilli its colour and much of its flavour dissolve in fat. Warming the flakes in oil for under a minute spreads that flavour through the sauce. Longer than that and the flakes scorch, so keep it brief.

Prawns come out and go back in. Prawns cook in two to three minutes. A tomato sauce needs ten or more. Searing the prawns first and adding them at the end means each element is cooked for exactly as long as it needs. For more on timing, see our guide to cooking prawns perfectly.

Pasta water ties it together. The starch in the water helps the oil and tomato come together into a sauce that coats the pasta instead of sliding off it.

How to Adjust the Heat

If you tasted the sauce and it is too hot:

• Stir in a spoonful of butter or a splash of cream, which softens the heat.
• Add a little more pasta water and a pinch of sugar to stretch and balance the sauce.
• Serve with something cooling, such as plain yoghurt on the side or a simple cucumber salad.

If it is not hot enough:

• Add a pinch of chilli flakes and let it sit for a minute before tasting, since flakes need time to release their heat.
• Finish with a drizzle of chilli oil or a few drops of hot sauce.
• Top each plate with a few slices of fresh chilli.

Common Mistakes With Spicy Prawn Pasta

• Burning the chilli or garlic. Both turn bitter quickly. If the oil smells sharp or acrid, wipe the pan and start the sauce again.
• Skipping the taste at the end. The sauce changes as it reduces, so season and adjust the heat after the pasta is in.
• Overcooking the prawns. They are done when they are pink and curled into a loose C. A tight O means overcooked.
• Not drying the prawns. Wet prawns steam instead of sear and water down the sauce.
• A watery sauce. If it looks thin, simmer it a few minutes longer before adding the pasta. Pasta water will loosen it later if needed.
• Too much acidity. Some tinned tomatoes are quite sharp. A pinch of sugar or a small knob of butter evens it out.
• Leaving it to sit. The pasta keeps absorbing sauce, so serve it as soon as it is tossed.

What to Serve With Spicy Prawn Pasta

Because the dish already has plenty going on, simple sides work best. A peppery rocket salad with lemon dressing is the classic pairing. Garlic bread or a crusty loaf is useful for the last of the sauce. Roasted broccoli or courgette adds freshness. For drinks, a crisp white wine, a light lager or sparkling water with lemon all work well.

Variations

• Creamy and spicy: Stir in two to three tablespoons of cream at the end for a pink, rounded sauce, similar to our creamy tomato prawn pasta.
• White wine: Add 50 ml of dry white wine after the garlic and let it bubble for a minute before adding the tomato paste.
• Extra vegetables: Add handfuls of baby spinach at the end, or fry cherry tomatoes and courgette with the garlic.
• Chilli garlic soy style: Swap the tomato sauce for one tablespoon of chilli garlic sauce, one tablespoon of soy sauce and a teaspoon of brown sugar loosened with pasta water, then toss through rocket.
• Smoky: Add half a teaspoon of smoked paprika with the chilli flakes.
• Cajun twist: For a creamier, spiced version with a different flavour profile, try our Cajun prawn pasta.

Make-Ahead and Leftovers

The tomato sauce can be made up to three days ahead and kept in the fridge. Reheat it gently, then cook the prawns fresh and toss everything together. Fully assembled leftovers keep in a sealed container in the fridge for up to one day. Reheat in a pan over low heat with a splash of water, and avoid the microwave if you can, since it overcooks prawns. Freezing the finished dish is not recommended because the prawns lose their texture.

Recipe FAQs

Can I use shrimp instead of prawns? Yes. Use the same weight, about 250 g, with the same timing of roughly one minute per side until pink and curled.

Is this the same as arrabbiata? It is very close. Arrabbiata is a classic Italian tomato sauce with garlic and chilli. This recipe uses the same flavour idea with prawns added and a short searing step.

Can I use fresh chillies instead of chilli flakes? Yes. Use one or two sliced red chillies in place of the flakes in the oil. Remove the seeds and pith for less heat.

Can I use jarred pasta sauce? Yes, as a shortcut. Use about 300 ml of jarred tomato sauce in place of the tin and paste, and simmer for only 4 to 5 minutes. Add chilli to taste, since jarred sauces vary.

What pasta works best? Spaghetti and linguine are the classic choices. Penne or rigatoni are good if you want the sauce to collect inside the pasta.

How do I thaw frozen prawns quickly? Place them in a sealed bag in a bowl of cold water for 10 to 15 minutes, or thaw overnight in the fridge. Drain and dry them thoroughly before cooking.

How do I know when the prawns are cooked? They turn from grey and see-through to pink and opaque, and they curl into a loose C shape.

Can I make it without wine or alcohol? Yes. The base recipe contains no wine, and the wine variation is optional.

How do I make it less spicy for kids? Use a pinch of chilli flakes or leave them out of the sauce, and offer chilli flakes or hot sauce at the table for adults.

Final Thoughts

Spicy prawn pasta is a good example of a dish where technique matters more than the shopping list. Dry prawns, gentle garlic, chilli warmed briefly in oil, a properly reduced tomato sauce and a final taste-and-adjust step are all it takes to get a sauce with real heat and real flavour. Once you have the method, you can turn the spice up or down to suit anyone at the table.

If you want a milder tomato version, try our tomato prawn pasta. For something richer, the creamy garlic prawn pasta is a good place to go next.