Wow - making our own bricks wasn’t even something I thought of.
The Italian pizza oven needs to get to around 800-900 degrees. I wasn’t sure what kind of bricks could withstand those temperatures.
I'm making sun-dried mud bricks, though, and I'll just patch if they crack. I've got plenty of material.
Make a mud slurry with the clay and slap it on. Repeat as required.
I can promise you that the Mestizos don't go to a lot of trouble making their bricks. It's not high-tech.
/johnny