01 -
Cook the pasta according to the package directions until al dente.
02 -
In a large skillet, melt the butter over medium heat. Add the flour and whisk to combine. Cook the flour and butter together for 30-60 seconds.
03 -
Slowly add the milk to the roux, a small amount at a time, whisking well between each addition.
04 -
Cut the cream cheese into small chunks and drop into the sauce, stirring until melted and fully incorporated.
05 -
Add the freshly grated Parmesan cheese, chopped parsley, garlic powder, onion powder, salt, and pepper. Whisk until smooth.
06 -
Gently stir in the crabmeat and allow the sauce to cook on low heat until heated through.
07 -
Toss the cooked fettuccini with the sauce or serve the pasta topped with the sauce.