If you’re cooking for a crowd and wanting to serve steak, I really have to recommend using a sous vide cooking method. Whether you are serving individual steaks or slicing up a beef tenderloin, sous vide allows you complete temperature control without having to fret about accidentally overcooking the meat. This Sous Vide Beef Tenderloin with Blackberry Red Wine Reduction Sauce is a textbook use case for this cooking method.

The cooking of the meat is relatively simple, focusing on the “do no harm” method that I typically tout for fish. The Blackberry Red Wine Reduction Sauce is where the creativity gets to shine. A tinge of acidity and a dash of umami balance its distinctly sweet notes. Reduced to a fine glaze, it makes the perfect accent note for the melt-in-your-mouth decadence of the beef tenderloin. I recommend serving it on top of my Turnip and Rosemary Purée for an elegant, well-paired plating.
This dish was actually inspired by the wine we wanted to pair with it–Sequoia Grove’s Stagecoach Vineyard Cabernet Sauvignon.
The cooking method for the beef is inspired by:
- Sous Vide Steaks and Sous Vide Beef Tenderloin with Lemon Parsley Butter on Serious Eats
 
Related Recipes
If you need some ideas of what to serve alongside this dish, I suggest these:
- Turnip & Rosemary Purée
 - Zucchini Gouda Bakes (Individual Version)
 - Roasted Asparagus with Furikake and Plant-based Spread
 - Savory Goat Cheese and Cashew Panna Cotta
 - Keto Crab Cakes with Lemon-Garlic Aioli
 
Check out my Feeling Fancy Dinner Party for a full menu.
Some similar recipes include:
- Savory Spiced Beef Roast
 - Sous Vide Corned Beef
 - Braised Beef in Wine Reduction Sauce
 - Braised Beef Short Rib
 

Sous Vide Beef Tenderloin with Blackberry Red Wine Reduction Sauce
Ingredients
For the Blackberry Syrup:
- 18 ounces Blackberries Fresh or Frozen. See note on water.
 - ⅓ cup Allulose
 - ⅛ cup Water ONLY IF using fresh Blackberries. If frozen, don’t include the water.
 
For the Blackberry Red Wine Reduction Sauce:
- 750 milliliters Pinot Noir 1 bottle
 - 4 cups Beef Stock
 - ¾ cup Blackberry Sauce from above
 - 3 tablespoons Soy Sauce
 - 1 tablespoon Worcestershire Sauce
 - 3 Bay Leaves
 - 10 Allspice Berries
 - Kosher Salt To Taste
 
For the Sous Vide Beef Tenderloin (See Recipe Notes for Serving Options):
- 6 pounds Beef Tenderloin ~ 8 ounces per person
 - Kosher Salt
 - Ground Black Pepper
 - 1 teaspoon Worcestershire Sauce
 
Instructions
To Make the Blackberry Syrup:
- In a small saucepan, combine 18 ounces Blackberries, ⅛ cup Water, and ⅓ cup Allulose.18 ounces Blackberries, ⅛ cup Water, ⅓ cup Allulose
 - Bring to a boil over medium high heat and then reduce to a simmer until thickened (Approximately 20 minutes.) (If you have an induction burner, this is a good time to use it.)
 - Strain through a fine mesh strainer. (Makes about ¾ cup Blackberry Sauce.)
 
To Make the Blackberry Red Wine Reduction Sauce:
- In a large saucepan, combine 750 milliliters Pinot Noir, 4 cups Beef Stock, all of the Blackberry Syrup (from above), 3 tablespoons Soy Sauce, 1 tablespoon Worcestershire Sauce, 3 Bay Leaves, and 10 Allspice Berries. If you have a tea infuser ball, place the Bay Leaves and Allspice Berries in it before placing it in the liquid.¾ cup Blackberry Sauce, 750 milliliters Pinot Noir, 4 cups Beef Stock, 3 Bay Leaves, 10 Allspice Berries, 1 tablespoon Worcestershire Sauce, 3 tablespoons Soy Sauce
 - Bring the liquid to a boil and then reduce to a simmer.
 - Allow it to continue to simmer until it has thickened enough to coat the back of a spoon and reduced by at least a third (approximately 1 hour), stirring occasionally.
 - Adjust Kosher Salt to taste. Remove Bay Leaves and Allspice Berries (suggest using a strainer if not the tea infuser ball).Kosher Salt
 - Drizzle on each plate along with a simply seasoned cut of beef such as beef tenderloin, filet mignon, or short ribs.
 
For the Sous Vide Beef Tenderloin:
- Set the Sous Vide Cooker to 125°F and let it come up to temp.
 - Generously sprinkle 6 pounds Beef Tenderloin with Kosher Salt and Ground Black Pepper.6 pounds Beef Tenderloin, Kosher Salt, Ground Black Pepper
 - Place in a vacuum sealer bag with approximately 1 teaspoon Worcestershire Sauce. Vacuum seal the bag.1 teaspoon Worcestershire Sauce
 - Place in the 125°F sous vide cooker and cook for at least 1 hour and up to 2.5 hours.
 - Before serving, remove from the water bath and the vacuum sealer bag.
 - Line a rimmed baking sheet with heavy duty aluminum foil and insert a wire rack. Turn the oven on to Broil.
 - Place the whole Beef Tenderloin on the wire rack and broil it on high for approximately 3-4 minutes on each side. Keep a close eye on it to prevent overcooking. NOTE: This is just for color and texture; the beef is cooked from its time in the sous vide.
 - Slice into approximately 8-ounce portions (see Recipe Notes for the finishing variation needed for Filet Mignon).
 - Drizzle with the Blackberry Red Wine Reduction Sauce and serve.
 
Equipment
- Large Saucepan / Saucier
 - Measuring Spoons
 - Measuring Cups
 - Fine Mesh Strainer or Sieve For straining the Blackberry Syrup
 - Medium Bowl For straining the Blackberry Syrup
 - Rubber Scraper Or another stirring utensil
 - Tea Infuser Ball Optional for containing the bay leaves and allspice berries while in the saucepan
 - Heavy Duty Aluminum Foil
 - Vacuum Sealer Or large zip top bag
 
Notes
- Serving Options: Sliced Beef Tenderloin vs. Filet Mignon
- The difference between serving this dish as sliced beef tenderloin or filet mignon is purely in the finishing steps.
 - For Sliced Beef Tenderloin:
- Sear with the broiler and then slice as detailed above.
 
 - For Butter-Basted Filet Mignon:
- Remove the cooked beef tenderloin from the sous vide, take it out of the vacuum sealed bag, and pat it dry.
 - Slice the tenderloin to your desired thickness for the steaks.
- I typically make them about 2 inches thick, depending on the diameter of the beef tenderloin. We’ve also done variations in which we have our guests come up to the counter and pick their own thickness.
 
 - In a heavy skillet, heat equal parts butter (I like salted) and avocado oil over medium high heat. (Approximately 6 tablespoons of each.)
 - Once heated, sear each steak on both sides, using a spoon to baste it with butter-oil mixture in the process.
 - Repeat this for each steak.
 
 - For Oven-Seared Filet Mignon:
- Instead of searing each in a skillet on the stovetop, lay them out on a wire rack inserted into a large rimmed baking sheet.
 - Place the filled sheet pan under the broiler. Broil on each side for approximately 2 minutes.
 - Rest the steaks for 10 minutes, drizzle with Blackberry Red Wine Reduction Sauce and serve.
 
 
 


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