Preparation method

Roast beef:

1. Mix oil, seasoning and thyme leaves together, and rub over fillet.
2. Sear fillet in a smoking hot pan to brown.
3. Pop into a preheated oven at 230°C for 8-10 minutes (for rare meat).
4. Remove, and rest for at least 5 minutes.

Horseradish sauce:

1. Mix cream and horseradish together, and season to taste.

To serve:

1. Serve fillet with horseradish sauce and a watercress and baby spinach salad.