Preheat the oven to 375°F.

Wash and chop the potatoes into small 1-inch pieces. Toss them with 3 oz of oil, salt, pepper, and herb seasoning. Arrange them on a baking sheet and bake for 30 minutes until they turn golden brown.

On a plate, season the beef with salt, pepper, and a bit of oil. Heat a skillet over medium-high heat and sear the beef on both sides until rare.

Transfer the beef to a pie pan and top with blue cheese and marmalade. Bake in the oven for 5 minutes until the cheese melts. Let it rest for a few minutes.

On a plate, arrange the arugula and place the beef on top. Surround the beef with the fingerling potatoes.