Buttery Tomato Spaghetti

Directions

1. 1
   Cook's Note: Using crushed tomatoes rather than breaking down whole tomatoes cuts the cook time of this sauce in half.
2. 2
   Heat a large pot of salted water to boil for the pasta.
3. 3
   Melt the butter in a saucepot over medium heat.
4. 4
   Add the basil, garlic, if using, onions and tomatoes and season with salt.
5. 5
   Bring to a simmer and let reduce 20 minutes, stirring occasionally.
6. 6
   After 12 to 13 minutes in, drop the pasta into the boiling water and cook to al dente.
7. 7
   Remove the onion halves from the sauce and add a ladle of starchy pasta cooking water.
8. 8
   Drain the pasta and add to the sauce.
9. 9
   Toss to combine.
10. 10
    Serve the pasta topped with Parmigiano-Reggiano.