Step 1

If using fresh onion and garlic (if not skip this step and go straight to step 2): heat 2 teaspoons extra virgin olive oil in a large skillet over medium heat with high sides or a pot. Add onion and cook until somewhat softened and translucent, about 5 minutes, stirring frequently. Add garlic and cook 30 seconds to 1 minute, until fragrant.

Step 2

Add all remaining ingredients to the skillet, scraping up any browned bits on the bottom of the pan.

Step 3

Bring to a boil, loosely cover, and reduce to a simmer. Cook for 20 minutes, stirring occasionally.

Step 4

Remove from heat. Use an immersion blender or transfer to a stand blender and blend until completely smooth. Add salt and pepper to taste.