❗️HELP BEEF COOKING QUESTION

[Eggybreadwithnuts]

❗️HELP❗️
So 1.1kg Sirloin of beefs been in 20 mins at 240
Turning down to 180 now for 50 mins (35 + 15 for medium)

BUT JUST HAD A LOOK AT IT BEFORE TURNING DOWN AND...

It looks really well done on the outside fat piece looks very well done, juices sizzling away in tray.

Am I on track????

Yes. You want it to be nicely done on the outside. You’re now turning it down to cook the middle.

UPDATE
So it was 95% perfect, more medium to well done so perhaps 5-10 mins less next time. But juicy and soft.