Start by preparing your ingredients. Mince garlic and gather all ingredients.

Heat olive oil in a saucepan, then add minced garlic and sauté until fragrant.

Sprinkle in the flour and whisk continuously to create a roux.

Gradually pour in heavy cream while whisking, stirring until mixture thickens.

Stir in salt, black pepper, oregano, and basil, and simmer until thickened.

Remove from heat and add grated Parmesan, stirring until melted and smooth.