Preheat hte oven to 350 degrees F.
In a small bowl, whisk together the melted butter, olive oil, salt, and garlic powder.
Toss the bread cubes with the butter/olive oil mixture.
Place on a baking sheet and toast in the oven for 10 minutes. Let cool.
Combine toasted bread cubes, tomatoes, fresh mozzarella, and fresh basil in a large bowl.
In a small bowl, whisk together white balsamic vinegar, olive oil, garlic, salt, and pepper.
Drizzle the dressing over the salad and toss to combine.
Serve drizzled with balsamic glaze.