To make this is the pressure cooker, brown the steaks and onion. Put in the bottle of sauce and put the steaks back in on the steaming basket. Pressure cook for 5 mins.
Then add in the cream and stir, add the onions to the sauce. put the steaks in the steaming basket and pressure cook for 3 mins for thick steaks.
Turn back to browning to finish the sauce and thicken it up then serve.