Cook the fettuccine according to package instructions in a large pot of salted boiling water. Drain and set aside, reserving 1/2 cup of pasta water.
In a large skillet over medium-high heat, season the chicken pieces with salt, black pepper, garlic powder, and paprika.
Melt 2 tablespoons of butter in the skillet. Add the seasoned chicken and cook for about 5-7 minutes, or until golden brown and cooked through. Remove the chicken from the skillet and set aside.
In the same skillet, add the remaining tablespoon of butter and minced garlic. Sauté for about 1 minute until fragrant.
Pour in the chicken broth and bring to a simmer. Let it reduce for about 2-3 minutes.
Stir in the heavy cream and bring to a gentle simmer. Add the grated Parmesan cheese and stir until melted and creamy.
Return the cooked chicken to the skillet and add the drained fettuccine. Toss everything together, adding reserved pasta water as needed to reach desired creaminess.
Garnish with chopped parsley and serve immediately.