01 -
In a small bowl, thoroughly blend the softened butter, grated parmesan, Italian seasoning, garlic powder, and salt until well combined.
02 -
Spread a thin, even layer of marinara or pizza sauce on four bread slices. Top each with the shredded mozzarella and six slices of pepperoni. Complete each sandwich with a remaining bread slice.
03 -
Spread the prepared garlic butter generously across the outer sides of all sandwiches.
04 -
Preheat a skillet over medium heat. Grill sandwiches for 3 to 4 minutes on each side, turning once, until the bread is golden brown and crisp and the cheese has melted.
05 -
Halve the hot grilled sandwiches and serve immediately, accompanied by extra warmed marinara sauce for dipping, if desired.