Beef & Pork Tenderloin Sandwiches

This is party food for grown-ups, the kind of buffet centerpiece that shows up at holiday open houses and wedding receptions where nobody wants another meatball. Both tenderloins take an overnight swim in port wine, brandy, tarragon, thyme, and dry mustard, picking up a deeply savory, slightly boozy backbone before they ever see the oven.

The two meats marinate together but roast separately. Each has its own ideal cooking method.

The beef tenderloin gets the classic high-low treatment: 15 minutes in a blazing oven, then the heat goes off and the roast finishes in the residual warmth for 45 minutes. That dry-heat blast sears the outside while the slow coast-down leaves the inside a rosy medium-rare.

Pork tenderloin takes a gentler 325°F (160°C) roast until cooked through, since pork doesn’t want the pink middle beef loves.

Thin-sliced on party rye with endive, mayo, and barbecue sauce, it’s a two-handed cocktail-hour bite that holds up on a platter for hours.

Chef Tips

• Pull the beef tenderloin out of the fridge an hour before roasting. A cold center throws off the high-low timing.
• Do not open the oven door during the 45-minute coast. Every peek drops the temperature and undercooks the beef.
• Slice both tenderloins against the grain, paper-thin. A proper ⅛-inch slice makes three-bite sandwiches instead of jaw-breakers.
• Prep the horseradish sauce a day ahead. The flavors meld and the sharp bite softens.

Variations

• Skip the rye and serve on toasted brioche slider buns for a more modern cocktail-party look.
• Swap the port for a dry red wine and the brandy for bourbon for a sweeter, smokier marinade.
• Serve with chutney alongside the mayo and barbecue sauce for a British tea-sandwich riff.