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Beef tenderloin with horseradish sauce on pretzel slider bun with lettuce on a wooden board.
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Gatsby Sandwiches | Beef Tenderloin Sliders with Horseradish Sauce

Cook beef tenderloin sliders to a perfect medium-rare with the help of sous vide. Then make a Gatsby Sandwiches of beef tenderloin with horseradish sauce. This cut will melt in your mouth!
Prep Time15 minutes
Cook Time2 hours
Refrigeration Time8 hours
Total Time10 hours 15 minutes
Servings: 6 sliders
Author: Pam Werley

Ingredients

Beef Tenderloin

  • ½ lb center cut beef tenderloin or two filet mignon
  • kosher salt
  • freshly cracked black pepper
  • 1 tablespoon ghee or you can substitute with butter

FOR THE HORSERADISH SAUCE:

  • ½ cup mayonnaise
  • 1 tablespoon prepared horseradish or to taste
  • ½ teaspoon fresh lemon juice
  • Freshly ground black pepper

FOR THE SLIDERS:

  • 6 Soft slider rolls like Hawaiian slider buns.
  • Baby spinach or arugula

Instructions

Beef Tenderloin Sous Vide:

  • Season the beef tenderloin well with kosher salt and black pepper.
  • Add the seasoned tenderloin to a vacuum seal bag and seal with your vacuum sealer. If you don't have a vacuum sealer, use another air removal method.
  • Set up your immersion circulator in your water bath container and add the tenderloin. With those in place, fill the water bath with water to in between the minimum and maximum fill lines.
  • Heat the water bath with the immersion circulator to 133 degrees F for medium-rare and cook for 2-4 hours. Do not cook longer than 4 hours.

Sear Beef Tenderloin

  • Remove the tenderloin from the water bath and bag. Pat completely dry with paper towels or a clean dish towel.
  • Heat a cast iron skillet over high heat. Once smoking, add the ghee to the skillet. Once melted, add the tenderloin and sear on all sides for 30 seconds to 1 minute, until browned.
  • Allow the meat to cool to room temperature, then wrap in foil and refrigerate for 8 hours or overnight. Cut into very thin slices for sliders.

Horseradish Sauce

  • In a bowl, mix ½ cup mayonnaise, 1 tablespoon prepared horseradish, and lemon juice until well blended. Season with more black pepper if desired.

Assemble Beef Tenderloin Sliders

  • Spread about 1 tablespoon horseradish sauce on bottoms of each bun. Top each bottom slider bun with baby spinach or arugula, about 2 slices of meat and another tablespoon of the remaining horse radish sauce, then add the slider bun tops.

Notes

You can use a salt blend instead of kosher salt and pepper when seasoning the tenderloin.
Ghee can be substituted with unsalted butter.