Fogo de Chao Cheesy bread poppers are the way.

[@BrianScoggin]

That recipe helps remind us of how they could be. I'm glad you are enjoying them. To get authentic texture, there needs to be a gelatinization step with the tapioca, also try and find povilho. The tapioca that you are using is actually probably fine but might bring a higher water content to the recipe. So basically, boil the wet stuff minus the egg, immediately mix into the dry stuff and let it sit until the temp drops below 60ºC then add the egg. Adding before that will cook the egg. Then form balls. No special pan needed. Cheese that is a little harder is also recommended. With all of that, you end up with a really structured cheesy delight. It looks like you're having a good time, congrats!