If you live in South Texas Chile Pequin bushes grow wild. I have oh half a dozen bushes in my yard. We love anything hot and there are more variations of this hot sauce than I can name. My friend Maria gave me this one.
She makes it in a mocajete and serves it on the table fresh daily.
Boil your tomatoe in water about 5 minutes. You can add onion to this pot. Discard tomato skin and all but 2 tablespoons water.
Add tomatoe mixture to mocajete with salt and pepper. Mash as desired and serve.
Note: There are lots of variations, play with it. Add small amount of chicken bouillon to water pot. Add more or less chiles to your liking. Chiles can also be boiled if desired but not necessary. Remember, these are HOT.