Make It Now:

1. Heat the oil in a large skillet over medium high heat. Once it’s shimmery, add in the onions and cook until they are soft, about 4 to 5 minutes. Stir in the garlic and cook another 30-60 seconds.
2. Whisk in the chicken broth, picking up any brown bits off the bottom of the pan. Cook until the liquid reduces by half, about 1-2 minutes.
3. Add in the crushed tomatoes, dried oregano, fresh basil, 1/2 teaspoon salt, and 1/4 teaspoon pepper.
4. Reduce the heat to low and simmer for 30 minutes, stirring occasionally. You may want to put on the lid and open it a crack to prevent splatters.
5. Taste and season with more salt and pepper to your preference. You can also use an immersion blender at this point, if you want a smoother sauce. (Freezing instructions begin here.)

Freeze For Later: Cook sauce as directed. Let cool completely. Once cooled, pour into mason jars (leave 1 inch of head space at the top) or Souper Cubes. Store for up to 3 months in the freezer.

Prepare From Frozen: Thaw sauce in refrigerator overnight or using the defrost setting on the microwave. Warm over low heat on the stovetop or in the microwave.