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Creamy one-pot fettuccine in nutty brown butter Cajun sauce with juicy seared chicken, garlic, milk, stock, cream, and parmesan. Weeknight comfort in 35 minutes.
This one-pot pasta takes the comfort of Alfredo and adds two upgrades: brown butter for depth and Cajun spice for warmth. It is still creamy and satisfying, but the flavor feels more layered than a standard cream sauce. Because the pasta cooks in the same pan as the sauce, the starch helps thicken everything without extra steps.
The dish is designed for weeknights. You brown the butter, cook the chicken, bloom the spices, then let the pasta simmer until tender. The sauce comes together as the noodles cook, so there is no separate pot to drain. It is a simple method with a rich payoff.
Expect nutty, toasted notes from brown butter, a gentle heat from Cajun spices, and a creamy finish from milk and cheese. The sauce is savory and slightly smoky, with just enough spice to keep each bite lively. A small squeeze of lemon at the end can brighten the richness if you want a lighter finish.
Brown butter is the base. It adds a toasted aroma that makes the sauce taste richer without extra ingredients. Cajun seasoning brings paprika, garlic, and pepper into the sauce, while chicken breast or thighs provide protein and body.
Parmesan gives the classic Alfredo flavor, but the pasta water and starch do a lot of the heavy lifting to create a smooth, glossy sauce. A small amount of cream or milk balances the spice and keeps the texture silky.
Start by browning the butter until it smells nutty and the milk solids turn golden. Add the chicken and cook until lightly browned. Stir in garlic and Cajun seasoning to bloom the spices, then pour in the liquid and add the pasta.
Simmer, stirring often, until the pasta is al dente and the sauce is thick. Add parmesan and stir until melted. If the sauce looks tight, add a splash of hot water. Finish with chopped parsley and black pepper.
Do not rush the brown butter. Pull it off the heat as soon as it turns golden so it does not burn. Stir the pasta often so it cooks evenly and does not stick to the pan.
If the spice level is high, balance with a little extra dairy or a squeeze of lemon. For a deeper flavor, add a pinch of smoked paprika along with the Cajun blend.
Use shrimp or sliced sausage instead of chicken. Swap half the pasta for zucchini ribbons if you want a lighter bowl. If you prefer a thinner sauce, use milk instead of cream and add a little extra parmesan at the end.
This pasta is best fresh, but leftovers keep for two days. Reheat gently with a splash of water or milk to loosen the sauce. If you are meal prepping, keep a little extra parmesan on the side to refresh the flavor after reheating.
Use chicken thighs if they are cheaper in your area. Pantry Cajun seasoning and boxed pasta keep costs low. Brown butter adds flavor without adding extra ingredients, so it is a smart way to make a simple pasta taste restaurant-level.
Serve with a simple green salad or steamed vegetables to cut the richness. A small squeeze of lemon or a spoon of chopped herbs brightens the plate. If you want heat, add extra Cajun seasoning at the end rather than during cooking.
Leftovers keep for up to two days. Reheat gently with a splash of water or milk so the sauce stays smooth. Avoid high heat, which can cause the cheese to seize.
Use chicken breast and swap half the cream for milk to reduce saturated fat. You can also reduce the cheese slightly and add more herbs for flavor. The brown butter provides plenty of richness even with lighter dairy.
Use store-brand pasta and seasoning blends to keep costs low. Chicken thighs are often cheaper and stay juicy. Browning the butter adds flavor without extra ingredients, making this a cost-effective upgrade.
Creamy one-pot fettuccine in nutty brown butter Cajun sauce with juicy seared chicken, garlic, milk, stock, cream, and parmesan. Weeknight comfort in 35 minutes.

Brown the butter over medium heat, stirring constantly—pull it as soon as it smells nutty and the milk solids are golden.
If the liquid reduces too fast while the pasta cooks, splash in extra stock or milk; do not drain.
Slice the rested chicken and fold in at the end so it stays juicy.
Finish with lemon for brightness and more parmesan for extra gloss.
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Pat chicken dry and coat evenly with Cajun seasoning, paprika, garlic powder, black pepper, and Italian seasoning.
Heat a deep skillet over medium-high; add olive oil and 1 tbsp butter.
Sear chicken 4–5 minutes per side until golden and cooked through (74°C / 165°F). Rest, then slice.
In the same pan, melt remaining butter over medium heat, stirring until it turns golden and nutty.
Add sliced garlic; sauté 1–2 minutes until fragrant.
Pour in milk and stock; bring to a gentle simmer.
Add fettuccine and cook 9–11 minutes, stirring occasionally so it doesn’t clump; add a splash of stock or milk if needed. Do not drain.
Lower heat; stir in double cream and parmesan until the sauce is smooth and glossy.
Fold in sliced chicken to warm through.
Taste and adjust seasoning. Sprinkle parsley, extra parmesan, and a squeeze of lemon.
Serve immediately—sauce thickens as it stands.
9/27/2025
Amazing recipe. One pot and zero fuss.
9/27/2025
Looks delicious 😍 Made it for date night—huge hit.
9/27/2025
Better than takeout—so creamy and the spice is perfect! 🔥
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Serving Size: 1 plate (approx. 1/4 of recipe)
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
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Jalalsamfit (adapted by JojoM)