First Step: Gather all ingredients for the bread, including wheat flour, water, eggs, olive oil, yeast, salt, and sugar, and mix them in a large bowl to form a dough, allowing it to rise in a warm spot for about 1 hour.

Second Step: Knead the dough on a floured surface until smooth, then shape it into a round loaf and let it rise again for another 30 to 45 minutes until it doubles in size.

Third Step: Preheat your oven to 375 degrees Fahrenheit and bake the loaf for 30 to 40 minutes, or until it turns golden brown and sounds hollow when tapped.

Fourth Step: Finely chop the green olives, black olives, celery, cauliflower, carrots, sweet peppers, onions, parsley, garlic, and pickled vegetables like capers, then mix them in a bowl with olive oil, vinegar, herbs, and spices.

Fifth Step: Let the olive salad marinate for at least 15 minutes to blend the flavors fully, stirring occasionally to ensure even distribution. This mixture, originating from Sicilian traditions, adds a fresh and tangy element to the sandwich.

Sixth Step: Slice the cooled bread loaf horizontally into two even halves, creating a top and bottom for easy layering.

Seventh Step: Spread a generous amount of the prepared olive salad on both halves of the bread, making sure to cover the surfaces evenly.

Eighth Step: Add layers of Italian cold cuts like salami and ham, followed by cheeses, pressing them down gently to secure the ingredients.

Ninth Step: Close the sandwich by placing the top half on the filled bottom, then press it slightly to meld the flavors.

Final Step: Serve the sandwich cold for a traditional experience or toast it in the oven at 350 degrees Fahrenheit for 10 minutes for a warm variation, slicing it into quarters for easier sharing. This process, which takes about 1.5 to 2 hours total including baking, results in a hearty main course packed with carbohydrates, healthy fats, protein, and vitamins.