Ultra Gel is ultrafine cornstarch, which is used to thicken the salsa. It is now the preferred product for thickening when canning. I recently purchased Ultra Gel, which is GMO free. Clear Jel is a similar product. When I first made this home canned salsa recipe, it called for cornstarch, but Ultra Gel and Clear Jel are now recommended over corn starch for canning.


Salsa Roja, as stated above is a red salsa in which the ingredients tomatoes, hot peppers, white onions and all have been cooked and blended as part of the preparation. This creates an intensely flavorful, relatively runny salsa perfect for slathering on tacos or using as a dip, but also suitable for many other uses. This versatility has made Salsa Roja a staple at many Mexican restaurants as a table-side dipping sauce, often made fresh in house.
Gloria's addictive salsa showcases the simple textures and flavors of the region: pungent garlic, earthy cilantro, spicy chili and sweet tomato, all of which adds up to a complex, beautifully balanced sauce. This salsa can be made winter or summer, with either fresh or canned tomatoes. We must warn, though, that it comes with a disclaimer: once you’ve tasted authentic Mexican salsa there’s no going back. The fresh flavor will linger in your memory even longer than it lingers on your tongue. After you see how quickly and easily it comes together, you’ll never again buy flavorless jarred salsa!
Absolutely wonderful! Just finished making IT! I made it with all fresh ingredients and added some extra little skinny cucumbers! For extra flavor a bit of Heinz Ketchup and Sriracha sauce! My husband just left to pick up some bags of Doritos. We can’t always get the “stuff” we so took for granted in Canada. Thanks so much for this incredible recipe….we both appreciate it!

This looks INCREDIBLE!! I also judge Mexican restaurants on the quality of their salsa. I became ADDICTED to chips and salsa when my son was first eating solids. Since there is little time to eat when caring for an infant, I would be feeing him with one hand and snacking on chips and salsa with the other. It is now my go-to when I’m having a snack craving!
Ultra Gel is ultrafine cornstarch, which is used to thicken the salsa. It is now the preferred product for thickening when canning. I recently purchased Ultra Gel, which is GMO free. Clear Jel is a similar product. When I first made this home canned salsa recipe, it called for cornstarch, but Ultra Gel and Clear Jel are now recommended over corn starch for canning.
I just made this wonderful salsa a couple of days ago with roma tomatoes. I 4X the recipe and ended up with 32 pints of salsa. We liked it so very much I am thinking of doing more with the 1 1/2 bushels of regular tomatoes that I have. Do you think that the regular tomatoes would have too much liquid in them or would the draining take care of that problem? I didn’t add the paste last time so I would probably add it for sure to make it thicker.
Seasoning mixes can be prepared from scratch or purchased pre-mixed. Ingredients that are frequently used in the mixes include garlic, chili powder, salt, pepper, sugar and cilantro. Vegetables such as peppers or onions can be dehydrated and included in seasoning mixes or added fresh into the recipe. Many cooks taste the salsa as they are preparing it, adding spices until the desired flavor is reached. Several drops of hot pepper sauce can be added to most recipes to create a spicy salsa.
Author and culinary arts teacher James Peterson suggests chopping the firm ingredients very finely. Several ingredients that you need to chop finely include chiles, garlic, and onions. For softer ingredients, like tomatoes, you can prepare them coarsely. If you want a chunky textured salsa, use a food processor, but if you want it smooth, use a blender.
The key to this recipe is to char the tomatoes and peppers on the stovetop. I tried to do it in the oven once and roast the tomatoes & peppers, bad move. It will take you about 20 minutes, but sooooooo worth the wait. You’ll need to rotate the veggies from time to time, so all the sides are pretty even. Here is what the vegetables will look like once they are done: 

The acid ingredients used in salsa help preserve it and prevent botulism poisoning. You must add acid to canned salsas because the ingredients’ natural acidity may not be high enough. Commonly used acids in home canning are vinegar and lemon juice. Lemon juice is more acidic than vinegar, but has less effect on flavor. Use only vinegar that is at least 5% acid and use only bottled lemon juice.

Made this today and it came out very good. Nice, easy recipe. I loved the tip about putting the tomatoes under the broiler for easy peeling, so much easier than dinking around with boiling water and ice baths. I am taking the lazy way out and freezing it in serving portions as I am all “canned out” for this summer. I used the rest of my garden tomatoes, which were a generic slicing type and tons of red grape tomatoes. I didn’t plant any romas this year as they failed last year.

Hi Heather – from all the reading I did on that recipe, the lady who created the recipe, Annie, developed it and had it tested at her local extension office years ago. There are a lot of threads on the Garden web forum – I looked for a few minutes and couldn’t find the original thread I had read but here’s a couple that might help (there’s LOTS of discussion on there about the proper way to make the salsa without messing up the pH levels and making it unsafe):
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This salsa is amazing! I made it last year but didn’t leave a comment, probably because I was too busy eating all the salsa. Just finished a batch today and thought I would add my two cents that I used about 18 pounds of roma tomatoes to get the 10 cups for this recipe. Perfect salsa every single time! I used 5 jalapenos and it has just a hint of heat, which is perfect for me, a self-proclaimed spice wimp. Thanks for another fool-proof recipe, Mel!
I just wanted to say thank you for sharing this recipe it really is the best salsa. My family is very picky when it comes to salsa, especially my husband. We tend to pick favorite Mexican restaurants more by their salsa than the menu items. This salsa is delicious and very much like a restaurant style salsa. I’m making my 3rd batch now and I’m excited to have this on hand for my family. Thank you, for sharing!
I like using apple cider vinegar in canning because I like the flavor, and it comes from apples. Most white vinegar comes from a variety of sources, including wood pulp. I use it white vinegar for cleaning, but it can be substituted in canning recipes if you like. The pH is the same. Lemon or lime juice can also be substituted for the vinegar in this recipe – but they give a more pronounced flavor.

I made the salsa this last weekend with tomatoes from the garden about half slicers and half roma. I followed your easy method which works great for a working mom. But for some reason it turned out not very tomatoey, good spice, thickness, beautiful. I went ahead and canned it because I thought it might get better with time, and was scared to add tomato paste putting everything off balance. Were my tomatoes not ripe enough?
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