Chicken Alfredo Power Pressure Cooker XL Box of fettuccine 4 chicken bust (cut right into dices). 4 cups of water. 2 containers of Alfredo sauce. 4 tablespoons of parmesan cheese. 1/3 mozzarella cheese. Add rosemary to desired amount. Salt as well as pepper to preference. 8 mins under pressure. Press maintain cozy switch and stir for 5 minutes, then allow mean 5 minutes covered.