This recipe has been adapted with thanks from PickYourOwn.org, who set out all the steps for this delicious tangy tomato goo, including the entire canning process. For other tips on canning, check out some previous posts here. I doubled the batch laid out below (of course) and ended up with about 8L of sauce.
In a very large pot, start simmering 5 14oz (796mL) cans diced tomatoes. This is roughly equivalent to 16 cups or 4 quarts (I did the math). In one of my batches I substituted one can of crushed tomatoes for diced. It didn’t seem to make much difference, save I had less seeds in that one.
Once those are going strong, chop and chuck in 4 stalks celery, 2 onions, 3 red peppers, 2 jalapeno peppers, and 2 cloves crushed garlic (or garlic-in-a-jar).
In addition to that, add in 2 teaspoons ground black pepper, 1 tablespoon dry mustard, 1 tablespoon paprika, 1 tablespoon sea salt, and 1/8 teaspoon cayenne pepper.
THEN add in 1 teaspoon hot pepper sauce, such as Tabasco, 1 cup brown sugar and 1 1/2 cups 5% (white) vinegar.
Remember you can adjust any of these flavourings to suit your own tastes. I added extra cayenne and brown sugar, as well as a few dobbles of sweet chilli sauce and a can of tomato paste.
Simmer everything for about 30 minutes or until it’s all softened.
Now here you have two options. If you have tremendous patience, you can run the cooked sauce through a food mill, which will remove the seeds and give you a lovely velvety smooth sauce.
If you’re me, you can use an immersion blender.
Tomato sauce will end up everywhere, and you will still have seeds in your slightly chunkier sauce, but you will end up with more sauce for preserving.
All you have to do at this point is cook down your processed sauce until it’s the consistency that you like. Just keep an eye on it and stir frequently to avoid burning. Remember that the sauce at this point is thick enough to interfere with proper convection so stirring is essential.
Pour into sterilized jars and can according to your canner’s instructions. And that’s it!