Bring a large pot of water to a boil and generously salt it
Add the egg noodles to the boiling water and cook according to the package directions until al dente
Reserve 1 cup pasta water, then drain the noodles
While the noodles are draining, melt the butter in the same pot over medium-low heat
If using garlic, sauté it in the melted butter for 1 min until fragrant
Return the drained noodles to the pot with the melted butter, stir to coat
Slowly add the reserved pasta water, 1–2 tbsp at a time, stirring to coat the noodles, you may not need/want all the water
Mix in the Parmesan cheese and freshly cracked black pepper to taste
Toss the noodles until they’re evenly coated with the buttery cheese sauce
Add more pasta water if needed to achieve the desired consistency
Garnish with extra parmesan or fresh parsley, if desired