A giant hot cheese sandwich for a large group

Ingredients:

• 1 whole loaf of white bread or brioche (about 0.6 kg)
• 1/4 cup mayonnaise
• 150 g of sliced ​​cheddar
• 150 g sliced ​​Monterey Jack cheese
• 150 g sliced ​​semi-skimmed mozzarella

Preparation:

1. Place 1 baking sheet on a rack set on the middle shelf of the oven and preheat the oven to 175°C.
2. Trim 0.5 cm of crust from the top and bottom of the loaf of bread. Cut the loaf in half horizontally, keeping the crusts even. Cut a piece of parchment paper large enough to fit both halves of the loaf, and place the top and bottom halves on it, cut side up, so the bread crumb is visible.
3. Remove 0.5 cm of crumb from the center of the loaf. Spread mayonnaise evenly over the crumb of each half, then flip them over so the mayonnaise side is facing down on the parchment paper.
4. Evenly distribute slices of the three cheeses between the two halves of the bread. Using parchment paper, transfer the bread and cheese to a preheated baking sheet, using a spatula if necessary. Then remove and discard the parchment. Bake until golden brown and the cheese is melted, about 18 minutes. Remove from the oven and immediately press the two halves of the bread together, with the cheese in the center. Let rest for about 10 minutes. Slice and serve hot.