Preheat the oven to 400 degrees.

Heat a small skillet over medium heat. Add the oil and garlic and cook the garlic for 30 seconds, until it is fragrant but not browned. Remove it from the heat.

Slice the loaf of bread in half lengthwise (separating the top from the bottom) and, using a pastry brush or spoon, spread the oil and garlic over the inside surface of each half of bread.

Sprinkle 1 Tbsp. grated Parmesan cheese over each half, transfer the bread, crust side down, directly to the oven rack, and cook it for 7 - 10 minutes, until it starts to turn golden brown on the edges. Cut into thin slices to serve.