Can anyone tell me how long a roastbeef (entrecote) of 1200 gr that has to
stay in the oven set to 80°
until it is medium done (core temperature 55°) in order that I can time
serving time correctly?
I will fry the loaf of meet on the stove on high temperature for about 5
minutes on either side
before I put it into the oven.

Thank you very much for your feedback.

baba