Rump steak or round steak is a very lean cut of meat from the backside of the cow. It is not as tender as sirloin or tenderloin but still tasty and less expensive.
Rub the rump steak on both sides with a little olive oil and the pepper. Keep at room temperature until ready to cook.Pan sear the rump steak in a hot pan with oil for 3-4 minutes on each side.Add a knob of butter and baste the beef for a minute or two on both sides.Remove the steak from the pan, season with a little salt and allow it to rest covered with aluminium foil for 10 minutes.
Prepare the sauce
Use the same pan to sweat the onions with the rendered fat and the caramelised juices from the meat.
Add the garlic, quickly stir, and deglaze the pan with the vinegar.Pour in the veal stock and boil to reduce the sauce for 3-4 minutes until thickened.
Whisk in the parcels of cold butter, add the chopped parsley and season to taste.
Serve with a side dish of your choice.
Notes
Remove the steaks from the fridge and allow them to come to room temperature at least an hour before beginning to cook.