Sauté the onion

• Chop the fresh onion.
• Heat the olive oil in a pan and add the onion.
• Add a splash of water so the onion isn't too crunchy and cook until soft.

Build the sauce

• Pour in the tomato sauce and stir.
• Add the cream and mix well.
• Season with salt, paprika and pepper, then stir again.

Boil the pasta

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

Make it creamy

• Add the butter to the sauce and let it melt.
• Stir in the mozzarella cheese until it melts into the sauce.

Combine and serve

• Add the drained pasta to the sauce and mix well.
• Add the remaining mozzarella and stir until creamy.
• Serve immediately while hot.