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The Simplest Tomato Sauce

Prep Time5 mins
Cook Time45 mins
Total Time50 mins


  • 1 (28 ounce) can whole peeled tomatoes, with juices
  • 1 yellow onion , peeled and halved
  • 5 Tablespoons unsalted butter
  • Salt , to taste (optional)
  • Parmesan cheese (optional)


  • Heat the tomatoes, onion and butter in a heavy saucepan over medium heat. Bring to a simmer, then turn down the heat to low. Allow to simmer at a steady pace for about 45 minutes. Stir occasionally, crushing the tomatoes against the side of the pot with a wooden spoon. Remove from heat, discard the onion and salt to taste (optional, I do not add any). Serve warm over pasta, topped with sliced Parmesan cheese.