Step 1

Heat olive oil and butter in a medium saucepan, over medium-low heat.

Step 2

Add the minced garlic, oregano, crushed red pepper, and salt, and stir frequently until you begin to smell the garlic and herbs (2-3 minutes).

Step 3

Add the tomatoes, tomato paste, onions, basil, and sugar, and puree using a hand blender, until smooth. (You can also use a food processor for this step.)

Step 4

Return the sauce to the stove over medium heat. Once the tomatoes begin to simmer, reduce the heat to the lowest setting, where the sauce just bubbles lightly.

Step 5

Cook for 1 hour, until the sauce has reached your desired consistency. Taste the sauce and add additional salt, if desired.

Step 6

Use immediately, or cool and store refrigerated in an airtight container for up to 2 weeks.