Cook the chicken

• Heat the olive oil in a frying pan and cook the marinated chicken breast until golden and cooked through.
• Set the chicken aside on a plate.

Build the garlic sauce

• Deglaze the pan with the butter.
• Sauté the minced garlic and onion until translucent, then season with salt.

Thicken the cream sauce

• Pour in the heavy cream and stir in the flour mixture.
• Let the sauce thicken over low heat, stirring occasionally.

Boil the pasta

• Cook the pasta in salted boiling water until al dente.
• Drain, reserving a little pasta water.

Combine and serve

• Stir the grated parmesan into the sauce.
• Add the pasta and sliced chicken, loosening with pasta water if needed, and serve.