01 -
Divide ground chuck into six equal portions, forming each into a 1/3-pound ball.
02 -
Using a burger press, flatten each ball into an even patty.
03 -
Generously apply SPG rub to both sides of each patty.
04 -
Heat the griddle until hot and ready for searing.
05 -
Place patties on the griddle and cook for 4 minutes without moving.
06 -
Turn patties over, season the second side, and place three slices of pepper jack cheese atop each patty. Cook for another 3 minutes.
07 -
Move the patties to the cooler side of the griddle to continue melting the cheese gently.
08 -
Place Texas toast slices on the griddle at lower temperature and toast until golden, approximately 3 to 5 minutes.
09 -
Add a scoop of jalapeño popper mixture onto each patty, stack double patties, and top with a second slice of toasted bread.
10 -
Toast the assembled sandwiches on both sides briefly on the griddle until the bread is crisp and the filling is warmed through. Serve immediately.