Minute Steak with Roast Radishes & Hemp Butter

Grinding roasted hemp seeds into butter is a traditional Latvian way of creating an oily spread that is both tasty and nutritious. It keeps without refrigeration for a very long time — something I can vouch for, having travelled around the Baltics with some hemp butter (kindly given to me in Riga by my foodie friend Linda) for more than three weeks in the height of summer. Several weeks after my return, we were still eating it at home.

As a minute steak needs to be