Cook the pasta following the instructions on the box.
Make the sauce:
Heat a skillet over medium heat and melt the butter. Add the garlic and sauté it for 30 seconds to 1 minute, ensuring it doesn’t burn.
Pour in the warmed milk, cream cheese cubes, Parmesan cheese, and pepper. Stir with a wooden spatula to dissolve the cream cheese into the sauce. Reduce the heat to low and simmer for 5 minutes, coming back to stir from time to time.
Combine:
Add the pasta to the skillet and use kitchen tongs to combine it with the creamy Alfredo sauce.
Serve it topped with additional Parmesan cheese.
Notes
Swap the garlic clove for ½ teaspoon garlic powder. Since it doesn't need to be toasted, skip that step and add all the ingredients to the skillet to make the sauce.