Preheat oven to 350 degrees. In a pot, boil cavatappi noodles according to the directions on the package. Shred the block of cheese.
In a skillet on medium heat, melt butter. Add in flour to create a roux. Mix constantly to make sure the flour does not burn. Add in heavy cream and mix well. Allow to cook for about 3 minutes
Add in the shredded cheese. Season with salt, pepper and garlic powder. Cook on medium low heat until the cheese is completely incorporated.
Mix together the cheese sauce and the noodles. Add the cheesy noodles to the casserole dish. Bake 10-15 minutes. Garnish with parsley and serve immediately.
Notes
save leftovers in a Tupperware for up to 1 week.
when eating leftovers, reheat in the oven for best results.