Preheat your airfryer to 200°C (Preset it, or let it run for a couple of minutes before cooking)
In a bowl, mix 2 tbsp olive oil, crushed 2 clove garlic, 1 tsp rosemary, 1 tsp thyme, 1 tsp salt and pepper.
Rub the mixture evenly over 600 g beef topside, so it is completely covered.
Place the beef topside in the airfryer basket and roast it at 200 °C for 5 minutes to give it a crisp crust.Start the online kitchen timer hereTurn the beef topside over, lower the temperature to 160 °C and keep roasting for 15-20 minutes. Use a meat thermometer and take the meat out when the core temperature reaches 56-58 °C (medium).Start the online kitchen timer here
Put the beef topside on a chopping board, cover it loosely with foil and let it rest for 5-10 minutes. The core temperature rises to about 58-60 °C. Then slice it thinly across the grain and serve.
Notes
Note that the time may vary slightly depending on the thickness of the meat. Take the beef topside out at a core temperature of 56-58 °C and let it rest for 5-10 minutes under foil – it will then end up at about 58-60 °C (medium).