Set instant pot or pressure cooker to sauté’, add butter, onion, garlic and spices: paprika, pepper parsley, Italian seasoning and rosemary. Sauté until onions are softened.
Add chicken while on sauté’ mode and braise (brown) each side of chicken until slightly golden brown. Now pour 3/4 cup chicken broth (or 1/2 cup if the chicken is still frozen), 2 Tablespoons of lemon juice (or juice from 1 lemon) and salt over chicken and stir. Lock the lid into place and close the steam valve. Set Instant Pot to poultry setting for 6-7 minutes thawed and 11-12 minutes if frozen.
While chicken is cooking, make your pasta noodles per directions on package, any noodle is goes well with this lemon chicken.
When pressure cooking is complete, quick release the pressure. Remove the lid, using tongs take the chicken out of the inner pot and cover with foil to keep warm while you finish the lemon chicken sauce.
Keep the liquid mixture in the pot, set the pressure cooker to sauté once more. Add flour and heavy cream; whisk until thickened. Add salt to taste.
Pour sauce over lemon chicken and pasta. Serve with tossed green salad or vegetable to complete your meal. Enjoy!