This one pot chicken alfredo cooks the pasta right in a garlicky milk and broth sauce, so the starch from the noodles thickens the sauce as it simmers. Seared chicken, fettuccine, Parmesan, and Romano come together in a single large skillet, with far less cleanup than the usual two-pan method.
It is the kind of creamy chicken pasta you might order at an Italian restaurant, made at home with pantry staples. Plan on about 50 minutes, most of which is hands-off simmering, and expect enough for four generous plates.
Table of Contents
Why This One Pot Chicken Alfredo Works
Cooking pasta in the sauce changes the texture in a good way, and a few small habits keep it from sticking or scorching.
- The pasta releases starch into the milk and broth, which thickens the sauce without any flour.
- Two cheeses give more depth: Parmesan is nutty and mild, while Romano is sharper and saltier.
- Searing the chicken first leaves browned bits in the pan that flavor the sauce.
- Finishing with a little heavy cream makes the sauce smooth and keeps it from tasting thin.
Ingredients for One Pot Chicken Alfredo
- 2 tablespoons butter
- 3 boneless, skinless chicken breasts (about 1 1/2 pounds)
- Salt and black pepper, to taste
- 2 to 3 cloves garlic, minced
- 1 1/2 cups whole milk
- 1 cup chicken broth
- 8 ounces fettuccine or spaghetti
- 1/2 cup freshly grated Parmesan cheese
- 1/2 cup freshly grated Romano cheese
- 1/2 cup heavy cream
- Chopped fresh parsley, for garnish
How to Make One Pot Chicken Alfredo
1. Heat the pan. Warm a large, deep skillet over medium heat. Add the butter and tilt the pan so it coats the bottom.
2. Cook the chicken. Season the chicken with salt and pepper and place it in the pan. If the breasts are thick, cover the pan with a lid. Cook for about 8 minutes per side, until golden and a thermometer reads 165 degrees F in the thickest part.
3. Rest the chicken. Move the chicken to a cutting board and rest it for about 10 minutes before slicing.
4. Add the garlic. Lower the heat a little, add the garlic to the same pan, and cook for about 30 seconds, until fragrant.
5. Build the liquid. Pour in the milk and broth, add a little more salt and pepper, and bring the mixture to a gentle simmer.
6. Cook the pasta. Add the fettuccine, breaking it to fit if needed, and cook for 10 to 11 minutes, stirring often, until the pasta is al dente.
7. Thicken if needed. If the sauce still looks thin, lift the pasta out with tongs and simmer the sauce for 3 to 5 minutes, then return the pasta to the pan.
8. Add the cream and cheese. Stir in the heavy cream and simmer for about 5 minutes. Add the Parmesan and Romano and cook over medium-low heat just until melted. Do not boil it after the cheese goes in.
9. Serve. Slice the chicken, lay it over the pasta, and garnish with parsley. Serve right away.
How to Serve One Pot Chicken Alfredo
Serve this alfredo straight from the skillet while the sauce is creamy. Air fryer tortilla garlic bread is a quick side that cooks while the pasta simmers, and a simple green salad cuts through the richness.
For more takes on the same flavors, try the cream cheese alfredo sauce when you want a different base, the garlic butter chicken ricotta alfredo, or the Crock Pot chicken alfredo for a slow cooker version.
How to Store and Reheat One Pot Chicken Alfredo
Let the pasta cool slightly, then refrigerate it within 2 hours in an airtight container. Plan to eat it within 3 to 4 days.
The pasta keeps absorbing sauce as it sits, so add a splash of milk or broth when you reheat it. Warm it in a skillet over low heat, stirring often, until it is steaming hot. Cream sauces do not freeze well, so this recipe is best kept in the refrigerator.
Tips and Variations
- Use a wide, deep pan. The pasta needs room to move in the liquid so it cooks evenly.
- Stir often. Starch settles at the bottom of the pan, so frequent stirring prevents sticking.
- Grate your own cheese. Freshly grated Parmesan and Romano melt smoothly.
- Keep the heat low at the end. High heat after the cheese goes in can make the sauce grainy.
- Add vegetables. A cup of broccoli florets can go in during the last 4 minutes of the pasta cooking.
- Add heat. A pinch of red pepper flakes at the end gives a gentle kick.
The USDA Food Safety and Inspection Service lists 165 degrees F as the safe internal temperature for poultry, so use a thermometer in the thickest part of the breast rather than judging by color.
FAQ
Does the pasta really cook in the sauce?
Yes. The milk and broth are enough liquid to cook 8 ounces of fettuccine, and the starch that comes out of the noodles thickens the sauce as it simmers.
Can I use spaghetti instead of fettuccine?
Yes. Spaghetti works well and cooks in about the same time. Break the strands in half if your pan is small.
Why is my sauce too thin?
The sauce thickens as the pasta cooks and again when the cheese melts. If it still looks thin, simmer it a few more minutes and let it stand off the heat, since it tightens as it cools.
Can I use low-fat milk?
You can, but the sauce will be thinner and less creamy. Whole milk and heavy cream give the best texture and are less likely to curdle.
Can I use pre-cooked chicken?
Yes. Skip the searing step, slice the cooked chicken, and stir it into the pan at the end to warm through. Use the butter to cook the garlic instead.
One Pot Chicken Alfredo with Parmesan and Romano
Ingredients
Main Ingredients
- 2 tbsp butter
- 1 ½ lb boneless, skinless chicken breasts about 3 breasts
- salt and black pepper to taste
- 2 cloves garlic minced; use 3 for more garlic flavor
- 1 ½ cup whole milk
- 1 cup chicken broth
- 8 oz fettuccine or spaghetti
- ½ cup freshly grated Parmesan cheese
- ½ cup freshly grated Romano cheese
- ½ cup heavy cream
- chopped fresh parsley for garnish
Instructions
Cooking
- Warm a large, deep skillet over medium heat. Add the butter and tilt the pan to coat the bottom.
- Season the chicken with salt and pepper and add it to the pan. Cover if the breasts are thick. Cook about 8 minutes per side, until golden and a thermometer reads 165 degrees F.
- Move the chicken to a cutting board and rest it for about 10 minutes, then slice.
- Add the garlic to the pan and cook for about 30 seconds, until fragrant.
- Pour in the milk and broth, season with a little more salt and pepper, and bring to a gentle simmer.
- Add the fettuccine and cook for 10 to 11 minutes, stirring often, until al dente.
- If the sauce looks thin, lift out the pasta with tongs and simmer the sauce for 3 to 5 minutes, then return the pasta.
- Stir in the heavy cream and simmer for about 5 minutes. Add the Parmesan and Romano and cook over medium-low heat just until melted. Do not boil.
- Top the pasta with the sliced chicken and parsley and serve right away.
