I canned my own tomato sauce! I'm not going to lie, it was a lot of work! I made 7 pint jars using this recipe.
ETA: I found an easier way! See Canning Tomato Sauce - The Super Easy Way!
I started with this pile of tomatoes:
Then I blanched them so that I could peel the skins off easily.
After peeling the skins I had to squeeze all the juice/seeds out. This was the most time consuming part. Here are a bunch of them in my pot:
I cooked them until they had reduced by about half. It still seemed a bit chunky, so I decided to puree it in a blender.
Here it is in the jars after adding 1 Tbsp of lemon juice. I used a water bath canner to process them.
And finished! I plan on using it for chili this fall and winter! We also did a few cans of diced tomatoes this week and salsa!