Steps
1. Cook the spaghetti according to package instructions in salted boiling water until al dente.
2. While the pasta cooks, heat the olive oil in a pan over medium heat. Add minced garlic and sauté until fragrant, about 1 minute.
3. Pour in the milk and bring to a gentle simmer, stirring occasionally.
4. Stir in the grated parmesan cheese until melted and creamy. Season with salt and pepper to taste.
5. Drain the pasta and add it to the sauce, tossing to coat evenly.
6. Serve hot, garnished with fresh parsley if desired.