Italian Caprese Pesto Panini

Spread one tablespoon of basil pesto evenly onto one side of each slice of ciabatta bread.

Layer the fresh mozzarella slices onto two of the bread slices, followed by the tomato slices.

Drizzle the balsamic glaze over the tomatoes and close the sandwiches with the remaining bread slices.

Spread the softened butter thinly on the outside faces of the bread.

Heat a panini press or a heavy cast-iron skillet over medium heat.

Place the sandwiches in the press or skillet and cook for 3 to 4 minutes per side until the bread is golden brown and the cheese is thoroughly melted.

Remove from heat and let rest for one minute before slicing diagonally to serve.