Roasting the tomatoes concentrates the flavor in the tomatoes and results in a heartier sauce.
Make a variation of the sauce by adding a splash of heavy whipping cream to make a more creamier flavor.
You can vary the flavor by adding parsley, thyme, or oregano to the sauce.
The sauce can be stored in refrigerator for up to three months and in freezer for 6 months.
The tomatoes I used were very sweet. If you like, you can add a teaspoon of sugar to the recipe.