Craving a cozy, no-fuss dinner that feels like a hug from a crock pot? This Garlic Onion Cranberry Pork Tenderloin does exactly that—sweet, savory, and wildly easy.
It’s perfect for weeknights, dinner guests, or pretending you meal-prepped like a grown-up. But here’s the catch!
It tastes fancy without the fuss.
Contents
Equipment: Must-haves
- Crock pot (slow cooker)
- Skillet (preferably cast iron)
- Cutting board
- Chef’s knife
- Tongs
- Mixing bowl
- Measuring spoon set
- Measuring cup
- Wooden spoon
- Meat thermometer
- Serving platter

Equipment: Nice-to-haves
- Kitchen twine (to tie the tenderloin)
- Silicone brush (for basting)
- Slow cooker liner
- Small saucepan (for sauce finishing)
- Kitchen shears

Ingredients
- 1 pork tenderloin (about 1 to 1.5 pound)
- 1 small onion, thinly sliced
- 3 clove garlic, minced
- 1 cup cranberry sauce (whole berry or jellied)
- 1/4 cup chicken broth
- 2 tablespoon soy sauce
- 1 tablespoon Dijon mustard
- 1 tablespoon brown sugar
- 1 teaspoon dried thyme
- 1/2 teaspoon smoked paprika
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 tablespoon olive oil (for searing)
- 1 tablespoon butter (optional, for sauté)
- 1 sprig fresh rosemary (optional garnish)
- 1 tablespoon cornstarch (optional for thickening)
- 2 tablespoon water (for cornstarch slurry)
- Note: You can swap cranberry sauce for fresh cranberries cooked with sugar if you prefer a fresher zing.

Instructions
- Pat the pork dry with paper towel and season all over with salt, pepper, thyme, and smoked paprika like you mean it.
- Heat the skillet over medium-high and add olive oil until shimmering.
- Sear the pork on all sides until golden to lock in flavor, using tongs to turn it—this step is the flavor mic-drop.
- Remove the pork and set it on the cutting board while you finish the pan.
- Add butter to the skillet if using, then sauté the onion until translucent and soft.
- Stir in the garlic and cook just until fragrant—don’t let it burn unless you hate yourself a little.
- In the mixing bowl, whisk together the cranberry sauce, chicken broth, soy sauce, Dijon mustard, and brown sugar until smooth with your measuring spoons and cup.
- Spread the sautéed onion into the bottom of the crock pot to make a cozy bed.
- Nestle the seared pork on top of the onions and pour the cranberry mixture over the pork, making sure it’s mostly covered.
- Tuck the rosemary sprig on top if you’re feeling fancy.
- Cover and cook on low until the pork reaches the safe internal temperature, checking with your meat thermometer.
- Once cooked, transfer the pork to the cutting board and tent with foil to rest while you finish the sauce.
- Pour the cooking juices into the skillet or a small saucepan and bring to a simmer with the wooden spoon.
- If you want a thicker sauce, whisk a cornstarch slurry made in a small bowl into the simmering juices until glossy and slightly thickened.
- Slice the pork into medallions on the cutting board and arrange them on the serving platter.
- Spoon the cranberry-onion sauce over the pork, garnish with a little torn rosemary, and serve.
- Eat immediately and accept compliments with the appropriate modesty—you did most of the work, the crock pot did the rest.

Good to Know
Tip: Searing the pork is optional but highly recommended; it adds depth and a caramelized note that the crock pot can’t deliver alone. Substitutions: If you don’t have canned cranberry sauce, simmer fresh cranberries with sugar and a splash of orange juice until they pop and thicken.
Make-ahead: This recipe reheats beautifully—store pork and sauce separately in the refrigerator and gently rewarm in a skillet. Thickening trick: Mash a little of the cooked onion and cranberry into the sauce for natural body, or whisk in a cornstarch slurry if you want glossy gravy.
Serving suggestion: Pair with mashed potato or creamy polenta and a simple green for balance; that sweet-tart cranberry sauce loves a starchy wingman. Storage: Keep in an airtight container in the fridge for up to three day; freeze for up to three month if you’re planning ahead.
Dietary notes: Swap soy sauce for tamari for gluten-free; use low-sodium broth to control salt. Final note: The crock pot turns simple ingredients into a dinner that looks like you tried really hard—without actually trying that hard.
That’s why everyone will ask for the recipe.