Mouthwatering Chicken Fettuccine Alfredo

Chicken fettuccine alfredo was one of the first dishes I learned to make when I got married. Back then, I thought the only way to make it was from a jar, and it was fine but nothing special. Then I tried making it from scratch, and there was no going back. The creamy sauce, the tender chicken, those earthy mushrooms – it all comes together in one pan.

These days, this is my go-to recipe when I need to feed my family on a busy weeknight but still want something that feels a little fancy. The best part is that while the pasta is boiling, I can cook everything else in one large skillet. Fewer dishes means more time to actually sit down and eat with everyone.

Want a richer sauce? Use heavy cream instead of half and half. Prefer it lighter? The half and half works great. Either way, you’re getting a homemade alfredo that beats anything from a jar.

What Kind of Chicken Should I Use?

For this fettuccine alfredo, boneless, skinless chicken breasts are your best bet since they cook evenly and are easy to slice or cube. If you want to save a bit of money, chicken thighs work great too and actually stay more tender and juicy during cooking. You can use fresh or frozen chicken – just make sure frozen chicken is completely thawed before you start cooking so it browns properly. When shopping, look for chicken that’s pink in color without any gray spots, and if you’re buying it fresh, use it within a day or two for the best results.

Options for Substitutions

This recipe is pretty forgiving when it comes to swapping ingredients:

• Fettuccine: You can use any long pasta like linguine, tagliatelle, or pappardelle. In a pinch, penne or rigatoni work too – they’ll hold the sauce just fine.
• Chicken breast: Chicken thighs are a great substitute and actually stay more moist during cooking. You can also use rotisserie chicken to save time – just shred it and add it at the end.
• Half and half: Heavy cream makes a richer sauce, while whole milk works if you want something lighter. If using milk, you might need to add a bit more butter or a tablespoon of flour to help thicken the sauce.
• Mushrooms: Any mushroom variety works here – button, cremini, or baby bella all taste great. Not a mushroom fan? Just leave them out or swap with sun-dried tomatoes for a different flavor.
• Fresh parsley: Dried parsley works in a pinch (use about 1 tablespoon), or try fresh basil for an Italian twist.

Watch Out for These Mistakes While Cooking

The biggest mistake with chicken fettuccine alfredo is adding the pasta water back into the sauce, which can make your creamy alfredo thin and watery – always drain the pasta completely and shake off excess water before mixing it in.

Cooking your chicken all the way through in step 2 will lead to dry, rubbery meat since it cooks again later in the sauce, so pull it from the pan when it’s just slightly pink in the center (around 155°F).

Don’t skip the 10-15 minute resting period at the end, as this allows the sauce to thicken up and cling to the pasta instead of pooling at the bottom of your serving dish.

If your sauce seems too thick while simmering, resist the urge to add more liquid – it will loosen up once you add the pasta, and a thicker sauce at this stage means a creamier final dish.

What to Serve With Chicken Fettuccine Alfredo?

Since fettuccine alfredo is already pretty rich and creamy, I like to balance it out with something fresh and light on the side. A simple Caesar salad or mixed greens with a lemon vinaigrette cuts through all that creaminess perfectly. Garlic bread is always a crowd-pleaser too, especially for soaking up any extra alfredo sauce left on your plate. If you want to add more veggies to the meal, roasted broccoli or asparagus with a squeeze of lemon juice works really well alongside the pasta.

Storage Instructions

Store: Keep your leftover fettuccine alfredo in an airtight container in the fridge for up to 3 days. The sauce might thicken up a bit as it sits, but that’s totally normal with cream-based pasta dishes.

Freeze: You can freeze this for up to 2 months, though cream sauces sometimes separate a little when thawed. If you’re planning to freeze it, slightly undercook the pasta so it doesn’t get mushy when you reheat it later.

Reheat: Warm it up on the stovetop over medium-low heat, adding a splash of half and half or milk to loosen the sauce as it heats through. You can also microwave individual portions, but stir it every 30 seconds and add a little liquid to bring back that creamy texture.

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 3400-3700
• Protein: 225-245 g
• Fat: 90-105 g
• Carbohydrates: 350-370 g

Ingredients

For the pasta:

• 1 lb fettuccine (I always use Barilla for the perfect al dente texture)

For the chicken and vegetables:

• 2.5 lb chicken breast (cut into 1-inch bite-sized pieces)
• 1 lb mushrooms (thickly sliced into 1/4-inch pieces)
• 1 small onion
• 3 garlic cloves (freshly minced for best flavor)
• 3 tbsp olive oil
• 1 tbsp butter (I like Kerrygold unsalted butter for this)

For the sauce and garnish:

• 4 cups half and half
• 1/4 cup fresh parsley, chopped
• 1.5 tsp salt
• 1/2 tsp pepper
• 1/2 cup grated Parmesan cheese

Step 1: Prepare Mise en Place and Start Pasta

• 1 lb fettuccine
• 2.5 lb chicken breast, cut into 1-inch bite-sized pieces
• 1 small onion
• 3 garlic cloves, freshly minced
• 1 lb mushrooms, sliced into 1/4-inch pieces
• 1 tsp salt
• 1/2 tsp pepper

While you wait for water to boil, mince the garlic cloves finely, dice the onion into small pieces, and slice the mushrooms into 1/4-inch thick slices.

Season the chicken breast pieces with 1/2 teaspoon of salt and 1/4 teaspoon of pepper on all sides.

Bring a large pot of salted water to a rolling boil and add the fettuccine, cooking according to package directions until al dente.

Once the pasta reaches the desired texture, drain it in a colander and set aside—don’t rinse it, as the starch helps the sauce cling better.

Step 2: Sear Chicken Until Golden

• 3 tbsp olive oil
• seasoned chicken from Step 1

Heat 2 tablespoons of olive oil in a large skillet over medium-high heat until shimmering.

Working in two batches if needed to avoid overcrowding, add the seasoned chicken pieces and cook for 5-6 minutes, stirring occasionally, until they develop a golden-brown color on the outside and reach an internal temperature of 165°F.

Transfer the cooked chicken to a plate and set aside.

Step 3: Build Flavor Base with Aromatics and Mushrooms

• 1 tbsp butter
• 1 tbsp olive oil
• diced onion from Step 1
• sliced mushrooms from Step 1
• minced garlic from Step 1

Add the butter to the same skillet with the remaining oil (no need to clean it—those browned bits add tremendous flavor).

Add the diced onion and sauté for 3 minutes until softened and translucent.

Add the sliced mushrooms and cook for 6-7 minutes, stirring occasionally, until they release their moisture and begin to brown—I find mushrooms cooked this way develop a much richer, deeper flavor.

Stir in the minced garlic and cook for just 30 seconds until fragrant, being careful not to burn it.

Step 4: Create the Alfredo Sauce

• 4 cups half and half

Pour the 4 cups of half and half into the skillet with the aromatics and mushrooms, stirring to combine.

Reduce the heat to medium-low and simmer gently for 8-10 minutes, stirring occasionally, until the sauce reduces slightly and thickens—you should see it coat the back of a spoon.

Avoid boiling aggressively, as the half and half can separate if the temperature gets too high.

Step 5: Finish Sauce and Combine Components

• cooked chicken from Step 2
• 1/2 cup grated Parmesan cheese
• 1/4 cup fresh parsley, chopped
• 1/2 tsp salt
• 1/4 tsp pepper
• cooked fettuccine from Step 1

Return the cooked chicken from Step 2 to the skillet and stir well.

Remove from heat and immediately stir in the 1/2 cup of grated Parmesan cheese, 1/4 cup of fresh parsley, and the remaining 1/2 teaspoon of salt and 1/4 teaspoon of pepper.

Add the drained fettuccine from Step 1 and gently toss everything together until the pasta is evenly coated with the creamy sauce.

Let the dish rest off heat for 1-2 minutes to allow the flavors to meld.

Step 6: Serve and Enjoy

Divide the chicken fettuccine alfredo among serving bowls or plates immediately while it’s warm and creamy.

I recommend adding an extra sprinkle of fresh Parmesan and a few turns of fresh cracked pepper on top of each serving for both visual appeal and extra flavor.

Mouthwatering Chicken Fettuccine Alfredo

Delicious Mouthwatering Chicken Fettuccine Alfredo recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 35 minutes mins

Total Time 50 minutes mins

Servings 7 servings

Calories 3550 kcal

Ingredients

  

For the pasta::

• 1 lb fettuccine (I always use Barilla for the perfect al dente texture)

For the chicken and vegetables::

• 2.5 lb chicken breast (cut into 1-inch bite-sized pieces)
• 1 lb mushrooms (thickly sliced into 1/4-inch pieces)
• 1 small onion
• 3 garlic cloves (freshly minced for best flavor)
• 3 tbsp olive oil
• 1 tbsp butter (I like Kerrygold unsalted butter for this)

For the sauce and garnish::

• 4 cups half and half
• 1/4 cup fresh parsley, chopped
• 1.5 tsp salt
• 1/2 tsp pepper
• 1/2 cup grated Parmesan cheese

Instructions

 

• While you wait for water to boil, mince the garlic cloves finely, dice the onion into small pieces, and slice the mushrooms into 1/4-inch thick slices. Season the chicken breast pieces with 1/2 teaspoon of salt and 1/4 teaspoon of pepper on all sides. Bring a large pot of salted water to a rolling boil and add the fettuccine, cooking according to package directions until al dente. Once the pasta reaches the desired texture, drain it in a colander and set aside—don't rinse it, as the starch helps the sauce cling better.
• Heat 2 tablespoons of olive oil in a large skillet over medium-high heat until shimmering. Working in two batches if needed to avoid overcrowding, add the seasoned chicken pieces and cook for 5-6 minutes, stirring occasionally, until they develop a golden-brown color on the outside and reach an internal temperature of 165°F. Transfer the cooked chicken to a plate and set aside.
• Add the butter to the same skillet with the remaining oil (no need to clean it—those browned bits add tremendous flavor). Add the diced onion and sauté for 3 minutes until softened and translucent. Add the sliced mushrooms and cook for 6-7 minutes, stirring occasionally, until they release their moisture and begin to brown—I find mushrooms cooked this way develop a much richer, deeper flavor. Stir in the minced garlic and cook for just 30 seconds until fragrant, being careful not to burn it.
• Pour the 4 cups of half and half into the skillet with the aromatics and mushrooms, stirring to combine. Reduce the heat to medium-low and simmer gently for 8-10 minutes, stirring occasionally, until the sauce reduces slightly and thickens—you should see it coat the back of a spoon. Avoid boiling aggressively, as the half and half can separate if the temperature gets too high.
• Return the cooked chicken from Step 2 to the skillet and stir well. Remove from heat and immediately stir in the 1/2 cup of grated Parmesan cheese, 1/4 cup of fresh parsley, and the remaining 1/2 teaspoon of salt and 1/4 teaspoon of pepper. Add the drained fettuccine from Step 1 and gently toss everything together until the pasta is evenly coated with the creamy sauce. Let the dish rest off heat for 1-2 minutes to allow the flavors to meld.
• Divide the chicken fettuccine alfredo among serving bowls or plates immediately while it's warm and creamy. I recommend adding an extra sprinkle of fresh Parmesan and a few turns of fresh cracked pepper on top of each serving for both visual appeal and extra flavor.