Preparation Steps:

Prepare the Puree:

Slice the tomatoes.

Blend into a smooth puree.

Cook the Puree:

Pour into a large saucepan and bring to a boil.

Skim off any foam that rises to the surface.

Continue boiling for a couple of minutes, then turn off the heat.

Fill the Jars:

Pierce a few whole tomatoes with a fork and place them into the sterilized jars.

Pour the hot puree over the tomatoes, filling the jars.

Add fresh basil as desired.

Seal the Jars:

Immerse filled jars upright in boiling water in a large pot.

Boil long enough to create a vacuum seal (usually about 30 minutes).

Remove carefully and let cool.

Storage Tips:

Store jars in a cool, dry place away from direct sunlight.

Before using, inspect each jar:

Check for changes in flavor, color, or smell.

If you notice any spoilage, discard the contents.

With this foolproof method, you’ll always have delicious, preservative-free tomato sauce ready to enhance everything—from a quick spaghetti to hearty stews.