01 -
Preheat a large skillet over medium heat until evenly heated.
02 -
Spread a generous, even layer of softened butter on one side of each bread slice.
03 -
Place two slices of bread, buttered-side down, onto the skillet.
04 -
Layer half of the mozzarella slices evenly over the bread in the skillet.
05 -
Place one chicken cutlet onto each slice, ensuring it covers the cheese.
06 -
Evenly spoon marinara sauce over the chicken on both slices.
07 -
Layer the remaining mozzarella slices over the sauce on each sandwich.
08 -
Top each sandwich with the remaining bread slices, buttered-side up.
09 -
Cook sandwiches over medium heat until the bottoms are golden brown and crisp, about 3–4 minutes. Flip carefully with a spatula.
10 -
Continue cooking until the other side is golden and cheese is fully melted, about 3–4 minutes more. Remove from pan, let rest briefly, slice, and serve immediately.