Here is the recipe that I've used to can hot sauce for at least 15 years. I had an older neighbor (she could be my grandmother) show me how to can. One of the best skills I've ever learned!
16 cups fresh cored, peeled, and chopped tomatoes
3 cups chopped onion
1 cup chopped jalapeno peppers (more or less depending on the heat of the pepper and your tolerance for heat)
1/4 cup salt
1/3 cup sugar
2 cups vinegar
Cook down until you get the consistency you like. This can take about 1 1/2 hours to 2 hours. Seal in prepared jars. Makes about 8 pints.
This is before the cooking begins.
All sealed and ready to store. I only had a partial amount of tomatoes ready so it made a smaller batch. That's okay though, no tomato is ever wasted around here!