5  Tomatoes

0.5 tsp  Fine Sea Salt , plus more to taste

0.5 cups  White Onions , finely chopped

0.5 cups  Fresh Basil Leaves , chopped

2  Garlic Cloves , pressed or minced

1  Baguette

4 tbsp  Extra-Virgin Olive Oil , divided

Balsamic Vinegar , thick variety

Sea Salt Flakes , optional