In a medium saucepan, heat the olive oil over medium heat.
Add the minced garlic to the saucepan and sauté for 1–2 minutes until fragrant but not browned.
Sprinkle the flour over the garlic and stir to create a roux, cooking for one more minute.
Slowly whisk in the heavy cream, ensuring there are no lumps.
Stir in the salt, black pepper, oregano, basil, and red pepper flakes.
Continue cooking the sauce over medium heat, whisking continuously until it thickens—about 5–7 minutes.
Remove the saucepan from heat and stir in the grated Parmesan cheese until melted and smooth.
Allow the sauce to cool slightly before using it on your pizza.