Add everything to a sauce pan but the basil and Parmesan if using. Bring to a simmer and stir occasionally for 10-15 minutes. Taste and adjust if needed.
Turn off heat and add basil and Parmesan. Serve or cool and store in an airtight jar in the fridge for up to a week. Freeze or do a canning bath if keeping longer.
Notes
This recipe makes about 4 cups of sauce depending on how far you reduce it. The nutritional information is based on making 8, one-half cup servings.One serving is 1/8 of the recipe or about 1/2 cup.
Nutrition
Serving: 0.5cup | Calories: 54kcal | Carbohydrates: 4g | Protein: 1g | Fat: 4g | Sodium: 135mg | Fiber: 1g | Net Carbs: 3g | Fat Ratio per Serving: 66.67% | Protein Ratio per Serving: 7.41% | Carb Ratio per Serving: 22.22%