Follow these simple steps to create your delicious Lemon Butter Pasta:

1. Cook Pasta: Bring a large pot of salted water to a boil. Add the spaghetti or linguine and cook until al dente according to package instructions. Reserve 1 cup of pasta water, then drain and set aside.
2. Melt Butter: In a large skillet, melt the unsalted butter over medium heat.
3. Add Lemon: Stir in the lemon zest and juice, allowing it to infuse the butter for about 1 minute.
4. Combine Pasta: Add the drained pasta to the skillet and toss it in the lemon butter sauce.
5. Adjust Consistency: Gradually add reserved pasta water, 1/4 cup at a time, until you reach your desired sauciness.
6. Season: Sprinkle with salt and freshly cracked black pepper to taste. Toss well to combine.
7. Add Cheese: Remove from heat and stir in the Parmesan cheese until melted and creamy.
8. Finish with Parsley: Fold in the chopped fresh parsley for added flavor and color.
9. Serve: Plate the pasta, garnishing with additional Parmesan cheese and optional lemon slices for presentation.

By following these steps, you’ll achieve a plate of Lemon Butter Pasta that tantalizes the senses and warms the soul.