Prepare the ingredients! Slice a stale, day-old baguette into ½-inch (1 cm) thick slices. Finely dice the tomatoes. Mince or grate the garlic, and combine it with olive oil.
6 slices baguette, 2 roma tomatoes, 2 garlic cloves, 1 tablespoon olive oil
Heat up a skillet or frying pan over medium heat, and add the garlic and olive oil. Cook for about a minute while stirring, until the garlic is cooked through. Transfer the garlic and half of the oil to a small bowl, leaving the remaining olive oil in the skillet.
Add the sliced baguettes to the frying pan, and toast these for about a minute on both sides, or until golden. Depending on the size of your frying pan, you might be able to toast 2-4 slices at a time.
Add the diced tomatoes to the bowl with the garlic. Then, add salt and pepper, and stir to combine.
Assemble the bruschettas. Top each slice of toast with the tomato mixture, diced mozzarella cheese, finely sliced fresh basil and a drizzle of balsamic vinegar.
3 basil leaves, 1 teaspoon balsamic vinegar, 1 mozzarella ball