When I was first learning to can back in the 1970’s salsa was not on my radar at all. That might be because the canning books I followed didn’t have any recipes for it. Fast forward to the 21st century and there are lots of salsa recipes in the canning books. Salsa is a form of relish and is as easy to make as pickles. It does require some chopping, which I do with a knife; although some people prefer to use a food processor. I can salsa for use later and include vinegar, as you would for other relishes. Recipes for salsa to consume fresh might not include vinegar.
The recipe I use is for Zesty Salsa that I found in the Ball Blue Book from 1998. You can find the same recipe here. The main ingredients are tomatoes, peppers, and onions which I have in my garden. The vegetables you see in the first photo are the ones shown chopped in the second photo—all of which made the 6 pints of salsa in the last photo. Besides tomatoes, peppers, and onions, the recipe calls for cider vinegar, garlic, cilantro, salt, and hot pepper sauce (optional). I always have garlic available from my garden. Instead of cilantro, which I don’t grow, I used celery leaves and parsley from my garden. One of the reasons I like making salsa is that it is so colorful when you have everything chopped up together.
Although the recipe includes both green sweet peppers and hot peppers, I am not into hot so I used sweet peppers only and no hot sauce, although I have added some mildly hot peppers in the past. You have to be careful with canning recipes. You can sometimes make substitutions, but you need to do them wisely. The salsa was canned in a hot water bath which is used for high acid foods, so care must be taken to maintain the acidity. Tomatoes are high acid foods, but onions and peppers are not. Vinegar in the recipe contributes to the acidity. You can substitute different kinds of peppers, such as sweet for hot, but be careful to not have more than the total amount of peppers called for in the recipe. The same goes for onions. They could be any combination of red, yellow, or white, but the total should not exceed the amount in the recipe. The Complete Guide to Home Canning has great information about this and other substitutions. You can find it online at the National Center for Home Food Preservation website as a free download or order your own hardcopy at Purdue Extension’s Education Store.
Besides tacos, salsa can be used as an addition to many foods, including potatoes and eggs. Of course, it can be eaten as a dip just as it is. I grow cowpeas out to dried beans, store them in jars in the pantry, then cook them as needed. We have found that salsa goes great with those cooked cowpeas. If you are growing your own staple crops, salsa and other relishes can add interest and taste to your meals. Last winter friends gave us two jars of relish. One was corn relish, but I don’t remember the name of the other. It was all delicious on cowpeas. If you are putting up pints for your table, make sure to can some half-pints (jelly jar size) to give as gifts. The time, energy, and produce that went into making the salsa now will be appreciated by the recipients when gift-giving time rolls around. It will also make your life easier to have something on hand to share with your friends anytime the mood strikes. If you are wondering about those white lids on my canning jars—they are reusable lids. I like to use them on high acid foods and only on jars that I won’t be giving away. I’ll have to make another batch with regular lids for gift jars.
Salsa, canned in jars, is a convenience food for me. I have not tried fermenting it, but according to Sandor Katz in The Art of Fermentation, you could do that. Reduce or eliminate the vinegar and use plenty of salt. Tomatoes, peppers, onions, and garlic are available at the farmers markets now. If you haven’t grown your own, you could still do this. The 10 Day Local Food Challenge is coming up in October. If you plan on taking part, having a supply of salsa put up will enhance your meals. The 10 Day Local Food Challenge allows ten exotics in your diet, which are items not local. For me, that would be the salt and vinegar in the recipe. I haven’t made vinegar, but I suppose you could make your own from local apples. Then vinegar would be off the exotic list. Maybe you could find a vinegar maker and saltworks within your local food shed. It is something to think about.