Instructions

• In a bowl whisk the aioli ingredients.
• Prepare the grill for direct cooking over medium heat (350° to 450°F). Preheat the griddle over direct medium heat for 5 minutes.
  Prepare the grill for cooking over medium heat (400°F). Preheat the griddle over direct medium heat for 5 minutes.
• Cut two (4-inch) sections of the ciabatta loaf. Set aside the remaining bread for another use. Halve each bread section horizontally. Brush the cut sides of the bread with the aioli. Arrange a layer of mozzarella, ham, and arugula on the two bottom pieces of bread. Cover with the bread top.
• Place the sandwiches on the griddle and grill, with the lid closed, until the bread is toasted, and the cheese begins to melt, 2 to 3 minutes. Using a spatula, flip the sandwiches. Grill, with the lid closed, until the bottoms are toasted, 2 to 3 minutes more. Serve at once.