Melt butter in a large skillet over medium-high heat. Add garlic and saute one minute, stirring constantly. Sprinkle with flour, and stir to combine. Saute and stir for an additional minute to cook flour.

Slowly add chicken broth, whisking to combine until smooth. Whisk in milk, and bring the mixture to a slight simmer. Cook for an additional minute until thickened, then stir in Parmesan cheese, cream cheese, salt and pepper. Reduce heat to low and continue to stir until cheese has melted.

Meanwhile, cook fettuccine according to package directions. Drain. Serve in individual bowls with Alfredo sauce poured over top. Serve and enjoy!