This slow cooker 4-ingredient cranberry beef tenderloin is my go-to when I want something that looks like a gorgeous centerpiece but doesn’t ask much of me in the kitchen. My sister actually brought a version of this to our Mother’s Day brunch one year, and the sweet-tangy cranberry glaze over tender pink slices of beef completely stole the show. It’s a simple Midwestern-style, dump-and-go recipe that feels special enough for holidays, but easy enough for a Sunday family dinner.
Serve the sliced cranberry beef tenderloin on a warm white platter, spooning extra sauce over the top so the ruby red glaze runs between the medallions. It pairs beautifully with creamy mashed potatoes or buttered egg noodles to soak up the sauce, plus a green vegetable like roasted green beans or a simple salad. Warm dinner rolls or crusty bread are great for mopping up every last bit, and if you’re serving brunch-style, add a fruit salad and a light egg dish on the side. A sparkling juice or a light red wine works nicely with the sweet-tangy flavors.
Slow Cooker Cranberry Beef TenderloinServings: 6
Ingredients
2 to 2.5 pounds beef tenderloin, trimmed
1 (14-ounce) can whole berry cranberry sauce
1/2 cup beef broth
1/4 cup balsamic vinegar
1 teaspoon kosher salt (divided, or to taste)
1/2 teaspoon black pepper (or to taste
1 tablespoon neutral oil (for searing, optional but recommended)
Directions
Pat the beef tenderloin dry with paper towels. Trim any excess silver skin if needed. Sprinkle all over with about 1/2 teaspoon of the kosher salt and the black pepper, pressing gently so it adheres.
Optional but recommended for best flavor and color: Heat the neutral oil in a large skillet over medium-high heat. When the oil is hot and shimmering, sear the beef tenderloin on all sides, 1 to 2 minutes per side, until nicely browned. This helps keep the pretty pink center with a flavorful crust.
In a medium bowl, whisk together the whole berry cranberry sauce, beef broth, balsamic vinegar, and the remaining 1/2 teaspoon kosher salt until mostly smooth. It’s fine if some whole cranberries remain; they’ll turn into a glossy, chunky sauce in the slow cooker.
Place the beef tenderloin in the bottom of a 4- to 6-quart slow cooker, bending it slightly to fit if needed. Pour the cranberry mixture evenly over the top, making sure some sauce gets underneath and around the sides of the meat.
Cover and cook on LOW for 1.5 to 2.5 hours, depending on the thickness of your tenderloin and your slow cooker, until the internal temperature reaches about 130°F for medium-rare or 135°F for medium when checked in the thickest part with an instant-read thermometer. Avoid lifting the lid too often so the heat stays steady.
Once the beef reaches your preferred doneness, carefully transfer the tenderloin to a cutting board. Tent loosely with foil and let it rest for 10 to 15 minutes so the juices redistribute and the meat stays tender and moist.
While the beef rests, pour the cranberry cooking liquid from the slow cooker into a small saucepan. Bring to a gentle simmer over medium heat and cook for 5 to 8 minutes, stirring occasionally, until the sauce thickens slightly and turns glossy and spoonable. If it gets too thick, splash in a tablespoon or two of water or broth to loosen it.
Slice the rested beef tenderloin into 1/2-inch medallions. Arrange the slices on a warm white platter or individual plates. Spoon the warm, glossy cranberry sauce generously over the top, letting it drip over the edges of the pink slices for a pretty presentation. Serve right away with extra sauce on the side.
Variations & Tips
For picky eaters, you can reduce the tang by swapping half of the balsamic vinegar for additional beef broth, or stirring in a tablespoon of brown sugar or honey to the cranberry mixture before cooking. If someone in your family doesn’t like visible cranberries, blend the cranberry sauce, broth, and balsamic together until smooth before adding to the slow cooker, so it becomes a velvety glaze. To keep this strictly 4-ingredient, you can skip the oil and seasonings and simply use beef tenderloin, canned whole berry cranberry sauce, beef broth, and balsamic vinegar—just know that a little salt and pepper really help the flavors shine. For a slightly more savory version, add a sprig of fresh rosemary or thyme to the slow cooker, then discard before serving. If you prefer oven-roasting, sear the tenderloin, place it in a roasting pan, pour the cranberry mixture over, and roast at 400°F until it reaches your desired internal temperature, basting once or twice; then thicken the sauce on the stovetop as directed. FOOD SAFETY: Always use an instant-read thermometer to check doneness; for safety, the USDA recommends 145°F with a 3-minute rest, though many people enjoy tenderloin at 130°F to 135°F—choose what you’re comfortable with. Keep raw meat and its juices away from ready-to-eat foods, wash hands, knives, and cutting boards with hot soapy water after handling raw beef, and refrigerate leftovers within 2 hours in shallow containers. Reheat leftovers to at least 165°F before serving.
