Preheat a panini press or a grill pan.
Slice the ciabatta bread horizontally to create two equal-sized slices.
Layer one slice of bread with grilled chicken slices, tomato slices, fresh basil leaves, and mozzarella cheese.
Drizzle the balsamic glaze over the ingredients.
Place the other slice of bread on top to create a sandwich.
Lightly brush the outer sides of the sandwich with olive oil or spread butter.
Place the sandwich on the preheated panini press or grill pan.
Grill the panini for about 3-4 minutes, or until the bread is toasted and crispy, and the cheese has melted.
Carefully remove the panini from the press or pan and transfer it to a cutting board.
Let it rest for a minute before slicing it diagonally into halves or quarters.
Serve the Grilled Chicken Caprese Panini warm and enjoy!
