Savory Marinated Beef Tenderloin: a Juicy Delight

Ingredients

• 60 ml (¼ cup)soy sauce
• 30 ml (2 tablespoons)olive oil
• 30 ml (2 tablespoons)balsamic vinegar
• 4 clovesgarlic, minced
• 1 tablespoon fresh, or 1 teaspoon driedrosemary, chopped if fresh
• 1 tablespoon fresh, or 1 teaspoon driedthyme, chopped if fresh
• 1 teaspoonblack pepper
• 1 teaspoonsalt
• 680 g (1.5 lb)beef tenderloin, trimmed

Instructions

1. 1

   Mix the marinade

   Whisk the soy sauce, olive oil, balsamic vinegar, garlic, rosemary, thyme, black pepper and salt together in a bowl.

2. 2

   Marinate the beef

   Put the tenderloin in a large resealable bag or shallow dish and pour over the marinade, coating the meat all over. Seal the bag or cover the dish and refrigerate for at least 4 hours, preferably overnight.

3. 3

   Heat the cooking surface

   Preheat a grill or skillet over medium-high heat.

4. 4

   Sear the tenderloin

   Take the beef out of the marinade and leave it at room temperature for about 20 minutes. Grill or cook it in the skillet, searing each side for about 3–4 minutes. Check the centre with a meat thermometer, aiming for 54°C (130°F) for medium-rare, and adjust the cooking time as needed.

5. 5

   Rest and slice

   Remove the beef from the heat and let it rest for at least 10 minutes before slicing.

What is marinated beef tenderloin?

Tenderloin is a particularly tender cut of beef, and this version pairs it with a savoury, tangy marinade before cooking it quickly over high heat. The ingredients give the dish a French-inspired herb-and-vinegar character, while soy sauce adds a salty, savoury note.

The method keeps the seasoning simple: give the meat time to take on the marinade, sear it, then rest it before slicing.

Nutrition and macros by portion

The nutrition label shows one serving as written: 320 calories, 0g protein, 0g carbs, 15g fat.

The beef is the main source of protein, while olive oil contributes much of the fat; the soy sauce and balsamic vinegar add flavour and a smaller amount of carbohydrate. Pair a slice of tenderloin with plenty of vegetables and a potato or other starchy side to make a balanced plate.

The marinade ingredients

Savoury base: soy sauce supplies salt and depth, while balsamic vinegar brings acidity and a little sweetness. Olive oil helps the mixture coat the tenderloin.

Herbs and aromatics: garlic, rosemary and thyme lend a fragrant, savoury flavour. Fresh herbs are used in larger quantities than dried ones, so follow the listed alternative if using dried.

Marinating safely

Even coating: turn the tenderloin in the marinade or reposition it in the bag so the surface is covered. A shallow dish works too, provided the meat is in contact with the liquid.

Chilled time: refrigerate the beef for at least 4 hours, or overnight as suggested. Keep it covered or sealed while it marinates.

Searing and checking doneness

Hot surface: preheat the grill or skillet over medium-high heat before adding the beef. The recipe calls for searing each side for about 3–4 minutes.

Temperature cue: use a meat thermometer in the centre and aim for 54°C (130°F) for medium-rare. The time is a guide, so use the thermometer and adjust the cooking as needed.

Why resting matters

After cooking, leave the tenderloin off the heat for at least 10 minutes before cutting. This pause is part of the method and helps the meat retain its juices.

Slice after resting rather than cutting into the tenderloin straight away, and serve the slices while warm.

What to serve with it

Vegetables: serve with green beans, roasted carrots or a crisp salad for a fresh contrast to the rich beef.

Something filling: potatoes or crusty bread make a practical accompaniment and can soak up the juices on the plate. Keep the sides simple so the herb marinade remains the focus.

Recipe notes & tips

• Mix the marinade thoroughly so the herbs and seasonings are distributed through the liquid.
• Turn the tenderloin in the marinade to coat all sides.
• Allow about 20 minutes at room temperature after removing the beef from the marinade, as directed.
• Preheat the grill or skillet before cooking so it is ready for searing.
• Use a meat thermometer to check the centre rather than relying on timing alone.
• Leave the cooked tenderloin to rest for at least 10 minutes before slicing.

Variations

• Dried herbs: use 1 teaspoon each of dried rosemary and thyme instead of the fresh herbs.
• More garlic: increase the garlic if you prefer a stronger, more pungent marinade.
• Peppery finish: add extra black pepper to the marinade for a more pronounced pepper note.
• Grill method: cook the tenderloin on a preheated grill, searing each side for about 3–4 minutes.
• Skillet method: use a preheated skillet and sear each side for about 3–4 minutes.

Common mistakes to avoid

• Short marinating time: allow at least 4 hours in the refrigerator, with overnight marinating preferred.
• Uneven coating: turn the beef or reposition it in the bag so the marinade reaches the whole surface.
• Guessing doneness: check the centre with a meat thermometer and aim for 54°C (130°F) for medium-rare.
• Skipping the rest: leave the beef off the heat for at least 10 minutes before slicing.
• Slicing too soon: wait until the resting period is complete to help the meat retain its juices.

How to store

Refrigerate leftover beef in a covered container and use within 3–4 days. Reheat gently until warmed through, or enjoy the slices cold; avoid prolonged heating, which can make tenderloin less tender.

Frequently asked questions