01 -
Bring a large pot of salted water to a boil. Add the fettuccine and cook until al dente according to package instructions. Drain and set aside.
02 -
In a large skillet over medium heat, melt the butter. Add the flour and whisk constantly for 30 to 60 seconds, forming a smooth paste without browning.
03 -
Gradually pour in the milk while whisking continuously to prevent lumps from forming. Stir in the cream cheese pieces and whisk until fully incorporated and smooth.
04 -
Add grated Parmesan cheese, chopped parsley, garlic powder, onion powder, salt, and pepper. Stir until the sauce is creamy and the cheese has melted.
05 -
Gently fold the crabmeat into the sauce and allow it to heat through for 1 to 2 minutes, taking care not to break up the crab pieces.
06 -
Toss the cooked fettuccine with the finished sauce in the skillet or plate the pasta and spoon the sauce on top. Garnish with additional parsley, if desired, and serve immediately.