1Boil 12 cups of water with 1 tbsp fine sea salt and cook the box of fettuccine.
2Melt 6 tbsp unsalted butter in a large skillet or heavy pot.
3Stir in 1 tsp onion powder and 1 tsp garlic powder; cook for 30 seconds.
4Add 1 cup heavy cream, 1/2 tsp Italian seasoning, 1/4 tsp salt, and 1/4 tsp pepper. Bring to a boil, then reduce to medium-low and simmer for 1 to 3 minutes until thickened.
5Remove from heat and stir in 1 to 1 1/2 cups freshly grated Parmesan.
6Reserve 1 cup of pasta water, drain the pasta, and add it to the sauce with 1/2 cup of reserved pasta water.
7Toss the pasta and sauce over medium heat for 1 to 2 minutes.