Preheat the oven to 375°F (190°C).
Slice the French bread loaf in half lengthwise to create two long halves.
In a medium bowl, combine the softened butter, minced garlic, chopped parsley, salt, and black pepper. Mix well until fully incorporated.
Spread the garlic butter mixture evenly over the cut sides of both bread halves.
Sprinkle the grated Parmesan cheese evenly over the buttered bread halves.
Place the bread halves on a baking sheet, cut side up.
Bake in the preheated oven for 12 to 15 minutes, or until the bread is toasted and the edges are golden brown.
Remove from the oven and let cool for 2 minutes.
Cut the garlic bread into 8 equal pieces and serve warm.