Place the peeled garlic cloves into an oven-safe dish and pour the olive oil over them. Roast in the oven until the garlic is golden brown and very tender.
In a bowl, combine the softened butter, the roasted garlic cloves (along with a spoonful of the roasting oil), chopped parsley, oregano, onion powder, salt, and black pepper. Mash everything together with a fork until smooth and well combined.
Slice the French bread in half lengthwise. Evenly spread the roasted garlic butter mixture over the cut sides of the bread.
Sprinkle grated parmesan cheese over the garlic butter, then top generously with the shredded mozzarella cheese.
Bake in the oven until the cheese is completely melted, bubbly, and golden brown on top. Slice into thick pieces and serve hot.
Cook it hands-free.
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