Step 1

Add the olive oil, vinegar, 1/2 teaspoon salt and 1/4 teaspoon pepper to a mixing bowl and whisk to combine. Then add the tomato and coat in the dressing. Set aside.

Step 2

Slice the loaf of bread in half through the center and open it like a book, cut side up. Remove some of the crumb from the bread and use for something else.

Step 3

Spoon 3 tablespoons of the tomato dressing over the bottom half of bread. Place the ham on top of the bottom half of bread in an even layer. Top the ham with the mozzarella and season with a pinch of salt and pepper. Layer the tomatoes on top of the mozzarella. Top the tomatoes with the basil. Drizzle the remaining tomato dressing on the top half of the bread. Place the top on and wrap the sandwich tightly with plastic wrap.

Step 4

Refrigerate the sandwich for 3 to 4 hours. Unwrap and cut into 6 pieces when ready to serve.