Serve with Handful of mixed leaf salad, with watercress or dandelion (optional)
- For the beef:
- 4x 200g/7oz beef fillet steaks
- 2 garlic cloves, sliced
- 4 tbsp Cold Pressed Extra Virgin Just Rapeseed Oil
- Salt and freshly ground pepper
- 1 tsp whole black peppercorns
- For the potatoes:
- 1.35kg/3lb Maris Piper potatoes
- 2 tbsp Cold Pressed Extra Virgin Just Rapeseed Oil
- For the leek and mustard relish:
- 2-3 large leeks, thinly sliced
- 2 tbsp Cold Pressed Extra Virgin Just Rapeseed Oil
- 1 tbsp white wine vinegar
- 1 tsp wholegrain mustard
- Salt and freshly ground pepper
Preheat the oven to 240C/475F/Gas 8.
Place the beef in a shallow dish and cover with the sliced garlic, two tablespoons of rapeseed oil and a pinch of salt and freshly ground pepper.
Peel the potatoes and cut into large chunks. In a large saucepan of boiling, salted water, cook the potatoes for 2-3 minutes to parboil. Drain well and shake the potatoes in a metal colander (covered with a lid) to fluff up the edges.
Leave the potatoes in the colander over the empty hot saucepan for 1-2 minutes to steam, before tossing in a large bowl with salt and rapeseed oil. Arrange them on a baking tray and transfer to the oven.
In a frying pan, gently fry the leeks in two tablespoons of rapeseed oil, until they are tender.
Remove the leeks from the heat and, when they have cooled, add a tablespoon of white wine vinegar and a teaspoon of mustard. Season well with salt and pepper.
For the beef, crush the black peppercorns in a pestle and mortar and mix with the remaining two tablespoons of rapeseed oil. Coat the beef with the peppercorn mixture.
Pour the rapeseed oil from the marinade into a heated frying pan (adding a little more if there is not enough to coat the pan) and brown the meat on both sides. Transfer to the oven and cook for a further 7-8 minutes, or until cooked to your liking.
Rest the meat in a warm place for at least five minutes. Serve with the potatoes, a dollop of leek relish and a crisp salad.