Step 1

Heat oil in a medium saucepan over medium heat until shimmering. Add onion and cook until softened, about 5 minutes. Stir in garlic and red pepper flakes and cook until fragrant, about 30 seconds.

Step 2

Stir in tomato sauce, brown sugar, tomato paste, honey, cider vinegar, molasses, mustard, Worcestershire sauce, and oregano. Bring to a boil, then reduce heat to low and simmer until slightly thickened, about 20 minutes, stirring occasionally.

Step 3

Using an immersion blender, or transferring to a regular blender, puree sauce until smooth. Use on pizza the same day, or transfer to a jar and store in refrigerator for up to two weeks.