Cook the pasta

• Bring a large pot of salted water to a boil.
• Add the pasta and cook until al dente.
• Drain, reserving a little cooking water.

Sear the chicken

• Heat the olive oil in a frying pan over medium-high heat.
• Season the chicken with salt and black pepper.
• Cook the chicken until golden and cooked through, then set aside.

Soften the onion

• Add the onion to the same pan.
• Cook until soft and translucent.

Make the creamy sauce

• Pour in the heavy cream and bring to a gentle simmer.
• Stir in the grated Parmesan until melted and smooth.
• Season with salt and black pepper.

Combine and serve

• Return the chicken to the pan with the sauce.
• Add the drained pasta and toss to coat, loosening with a splash of pasta water if needed.
• Serve hot with extra Parmesan.