Sauté the onion and garlic

• Heat the olive oil in a large pan over medium heat.
• Add the onion and sauté until soft.
• Add the garlic and season with salt and pepper.

Build the base

• Add the butter, tomato paste and flour.
• Stir everything together and cook for a couple of minutes.

Add the liquids

• Pour in the chicken broth and the heavy cream.
• Let it cook together for a couple of minutes.

Add the sun-dried tomatoes and basil

• Stir in the chopped sun-dried tomatoes.
• Add a little of the sun-dried tomato oil for flavor.
• Add the shredded basil.

Finish the sauce

• Add the parmesan and a little pasta water.
• Stir everything together, taste and reseason if needed.

Toss with the pasta

• Toss the cooked spaghetti directly into the sauce.
• Serve immediately.