Chateaubriand: To merit this designation, you must imperatively serve a thick slice of beef tenderloin heart cut to (3.5 cm thickness minimum)
The béarnaise sauce (tarragon, chervil, shallot) is made in a bain-marie just 10 minutes before serving. Fingerling potatoes or olive-shaped potatoes (3 cm) need 5 minutes blanching then 15 minutes roasting in foaming butter. The trick: pull the meat from the fridge 10 minutes ahead, sear 2 minutes per side, then rest covered on an upturned plate for 7 to 8 minutes to keep the center rare and warm.Ingredients for 4 servings
- 4 beef tenderloin hearts of 7.75 oz (220 g) (approximately)
- 17.75 oz (500 g) of Noirmoutier potatoes or potatoes turned into olive shapes of approximately 3cm
- 4.25 oz (120 g) of butter
- 1 drop of grape seed oil
- 1/4.25 qt (4 liter) of béarnaise sauce
- salt and ground pepper
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