Chicken Fettuccine Alfredo

Ingredients:
6 ounces uncooked fettucine
1 lb boneless skinless chicken breasts,cubed
1 small onion chopped
4 garlic cloves minced
1/2 tsp salt
1/8 tsp cayenne pepper
1 tbsp butter
4-1/2 all purpose flour
1-1/2 cups half n half
1 cup frozen peas thawed
1/4 cup grated parmesan cheese

Method:
Cook fettuccine according to package directions .Meanwhile,in a large skillet,saute the chicken,onion,garlic,salt and cayenne in butter until chicken in no longer pink.stir in flour until blended.
Gradually add the half n half,peas and cheese.Bring to a boil;cook and stir for 1-2 mins or until thickened.Drain fettuccine;toss with chicken mixture.