My loaf was about 12×18 cm (4.7 x 7 inch), but you can of course use a larger loaf. Just adjust the amount of other ingredients accordingly.
Using a sharp knife, cut the bread horizontally and vertically to form cubes. Do not cut the bread all the way through, leave about half an inch of bread on the bottom. Place the bread on a baking sheet lined with parchment paper.
In a small saucepan, combine the butter, garlic, oregano, salt and pepper. Cook over low heat, stirring constantly, until the butter is completely melted.
Using a pastry brush, spread the butter mixture into the openings you cut in the bread. Spread any excess over the top.
Place the grated cheese into the cracks of the bread. Be careful, you don't want to break the bread.
Bake at 180° C/350˚F (conventional oven) for about 15 minutes.
Serve as soon as it comes out of the oven.
How to store
You can store it for three days in an airtight container.