Craving a hands-off weeknight hero that still tastes like you planned a feast? That’s why this Crock Pot apple herb butter pork tenderloin exists.
It takes a single pork tenderloin and turns it into tender, saucy magic while you do literally anything else. No oven drama, no standing-by stirring—just set it and live your life.
But here’s the catch! The slow cooker does the heavy lifting, and you get all the credit.
Contents
Equipment: Must-haves
- Crock pot (slow cooker)
- Skillet (for searing)
- Cutting board
- Sharp knife
- Mixing bowl
- Tongs
- Wooden spoon or silicone spatula

Equipment: Nice-to-haves
- Meat thermometer
- Kitchen twine
- Silicone brush
- Serving platter

Ingredients
- 1 pork tenderloin (about 1 to 1 1/4 lb)
- 1 large apple, cored and thinly sliced
- 1 small yellow onion, thinly sliced
- 2 cloves garlic, minced
- 2 tbsp unsalted butter
- 2 tbsp olive oil
- 1 tbsp apple cider vinegar
- 1/4 cup chicken broth
- 1 tbsp Dijon mustard
- 1 tbsp brown sugar (light or dark)
- 1 tsp fresh rosemary, chopped
- 1 tsp fresh thyme, chopped
- 1/2 tsp smoked paprika
- Salt, to taste
- Black pepper, to taste
- 1 tsp cornstarch (optional, for thickening)
- 1 tbsp cold water (optional, for thickening)

Instructions
- Pat the pork tenderloin dry and season it all over with salt, black pepper, and smoked paprika.
- Heat the skillet over medium-high and add olive oil and a tablespoon of butter until shimmering.
- Sear the pork on all sides until golden brown for a little crust and big flavor.
- Transfer the seared pork to the crock pot and, if you like, tie the tenderloin with kitchen twine so it keeps a neat shape.
- In the same skillet, melt the remaining butter and sauté the sliced onion until it softens and starts to caramelize.
- Add the minced garlic and sliced apple to the skillet and cook briefly until fragrant.
- Pour in the apple cider vinegar and chicken broth to deglaze the pan, scraping up any browned bits with a wooden spoon.
- Stir in Dijon mustard, brown sugar, chopped rosemary, and chopped thyme until the sauce is glossy and combined.
- Pour the apple-herb butter sauce over the pork in the crock pot, spreading the onion and apple slices around and on top.
- Set the crock pot to low and slow-cook until the pork reaches a safe internal temperature and is fork-tender.
- If you’re using a meat thermometer, check for the correct temperature toward the end of the cook time.
- When the pork is done, carefully remove it to a cutting board and let it rest for a few minutes so the juices relax.
- If you prefer a thicker sauce, strain a little cooking liquid into a small bowl, whisk cornstarch into cold water, then return to the skillet and simmer until thickened.
- Slice the rested pork against the grain into medallions and arrange them on a serving platter with the warm apple-onion sauce spooned over the top.
- Garnish with an extra pinch of chopped fresh thyme or rosemary and serve immediately with your favorite sides.
What Else You Should Know
Timing: Low and slow is the point here. Expect the tenderloin to finish faster than a roast; check early if your cooker runs hot.
Temperature tip: Use a meat thermometer to avoid guesswork; you want the pork to hit the safe zone and still be juicy. Thickening trick: If the sauce is too thin, mash a few apple slices in the pot or use the cornstarch slurry—both work like charm.
Variations: Swap the apple for pear if you want a milder sweetness. Add a splash of bourbon to the sauce for a grown-up twist.
Herb swaps: If fresh herbs are scarce, dried rosemary and thyme will do—use about a third of the fresh amount. Serving suggestions: This pork loves creamy mashed potatoes, roasted root vegetables, or a bed of buttery couscous.
Make-ahead: The sliced pork keeps well in the fridge and reheats beautifully in a low oven or covered skillet. Leftover idea: Shred any leftovers and toss with the sauce for a savory sandwich or salad topper.
Final note: The crock pot does most of the work, but a quick sear and a simple pan sauce make this feel like a dinner you actually tried hard at—without the sweat. Enjoy the glorious combination of apple, herb, and butter with minimal fuss and maximal bragging rights.