01 - Heat olive oil and butter in a large pot or deep skillet over medium heat. Add minced garlic and sauté for 1-2 minutes until fragrant but not browned, being careful not to burn the garlic.
02 - Add uncooked spaghetti or linguine directly to the pot. Pour in vegetable broth or water, ensuring pasta is just submerged. Season lightly with salt.
03 - Bring to a boil, then reduce heat to a simmer. Cook uncovered for 9-12 minutes, stirring frequently to prevent sticking. Continue until pasta reaches al dente texture and most liquid has been absorbed.
04 - Reduce heat to low. Stir in grated Parmesan, lemon zest and juice, and chopped parsley. Toss continuously until sauce coats pasta evenly and achieves a creamy consistency. Adjust seasoning with salt and pepper as needed.
05 - Transfer to serving plates and garnish with additional parsley and Parmesan cheese if desired. Serve hot while the sauce is at its silkiest consistency.