Season chicken cutlets with salt and black pepper on both sides.
Prepare three shallow bowls: one with flour, one with beaten eggs, and one with a mixture of panko breadcrumbs, 0.5 cup parmesan cheese, garlic powder, and onion powder.
Dredge each chicken cutlet in flour, dip into the egg wash, and coat thoroughly with the panko mixture, pressing firmly to adhere.
Cook fettuccine in a large pot of salted boiling water according to package instructions until al dente; reserve 0.5 cup of pasta water before draining.
Heat vegetable oil in a heavy skillet over medium-high heat to 350 degrees Fahrenheit.
Fry chicken cutlets for 3-4 minutes per side until the exterior is golden brown and the internal temperature reaches 165 degrees Fahrenheit. Transfer to a wire rack to maintain crispness.
In a separate large saucepan, melt butter over medium heat and sauté minced garlic for 1 minute until fragrant but not browned.
Pour in heavy cream and bring to a gentle simmer for 5 minutes until slightly reduced.
Lower heat and gradually whisk in the remaining 1 cup of parmesan cheese until the sauce is smooth and emulsified.
Toss the drained pasta into the sauce, adding reserved pasta water 1 tablespoon at a time if necessary to adjust consistency.
Slice the crispy chicken into strips and serve immediately over the pasta, garnished with fresh parsley.