Add the thin pasta and cook following the instructions on the package until it is firm to the bite.
Drain and put to the side.
Get the chicken ready.
Put salt and pepper on both sides of the chicken breasts.
In a big frying pan, warm up olive oil on medium-high heat.
Put the chicken breasts in the pan and cook them for 5-7 minutes on each side until they are fully cooked and have a golden brown color.
Take the chicken out of the pan, allow it to sit for a bit, and then cut it into thin pieces.
Prepare the Alfredo sauce.
In the same pan, lower the heat to medium and put in the butter.
After the butter has melted, put in the chopped garlic and cook for around 1 minute until it smells good.
Add the thick cream and heat it gently until it starts to simmer.
Mix the grated Parmesan cheese until it melts and the sauce thickens a bit.
Add salt, pepper, and nutmeg (if desired). Add more or less seasoning according to your preference.
Mix and serve.
Put the cooked tagliolini pasta in the pan with the Alfredo sauce, mix well to cover the pasta.
Put the cut chicken in the pan and mix it gently with the pasta and sauce.
Serve the tagliolini with chicken Alfredo right away, topped with chopped parsley and more grated Parmesan cheese.
Have fun!