Craving a restaurant-style dinner without standing over a hot stove? If your slow cooker could text you, it would say “I got this.”
This slow cooker pork tenderloin with mushroom butter sauce turns a modest cut into something regal.
But here’s the catch! A quick sear and a little patience are all it takes to get juicy results.
Contents
Equipment: Must-haves
- Slow cooker
- Skillet (cast-iron recommended)
- Sharp knife
- Cutting board
- Tongs
- Measuring spoons
Equipment: Nice-to-haves
- Meat thermometer
- Whisk
- Large spoon
- Small bowl
- Serving platter
Ingredients
- 1 pork tenderloin (about 1 to 1.5 pounds)
- 2 teaspoons salt
- 1 teaspoon black pepper
- 1 tablespoon olive oil
- 2 tablespoons unsalted butter
- 8 ounces mushroom, sliced
- 1 shallot, finely chopped
- 2 garlic clove, minced
- 1/2 cup chicken broth
- 1/4 cup dry white wine (optional — use more broth if skipping wine)
- 1/4 cup heavy cream
- 1 teaspoon Dijon mustard
- 1 teaspoon fresh thyme leaves (or 1/4 teaspoon dried thyme)
- 1 tablespoon cornstarch
- 2 tablespoons cold water
- 1 tablespoon fresh parsley, chopped (for garnish)
Instructions
- Pat the pork tenderloin dry and season all over with salt and pepper.
- Heat the skillet over medium-high heat and add the olive oil until shimmering.
- Sear the pork on all sides until golden brown to develop flavor and color.
- Transfer the seared pork to the slow cooker and tuck it in like it’s taking a nap.
- Add the chicken broth and white wine around the pork in the slow cooker so the liquid doesn’t wash the seasoning off the meat.
- Cover and cook on low until the pork is tender and reaches a safe internal temperature.
- While the pork cooks, wipe out the skillet and melt the butter over medium heat.
- Add the mushroom and shallot and sauté until the mushroom releases liquid and starts to brown.
- Stir in the garlic and thyme and cook until fragrant for a brief, aromatic moment.
- Pour in some of the cooking liquid from the slow cooker to deglaze the skillet and scrape up the browned bits.
- Add the chicken broth and cream, then whisk in the Dijon mustard to build the sauce.
- Bring the sauce to a gentle simmer so flavors marry and the sauce reduces slightly.
- Mix the cornstarch with cold water until smooth, then whisk the slurry into the simmering sauce to thicken.
- Taste the sauce and adjust seasoning with a pinch of salt and pepper if needed.
- Remove the pork from the slow cooker and let it rest for a few minutes; use the meat thermometer if you want exact doneness.
- Slice the pork into medallions and spoon the mushroom butter sauce over each piece.
- Garnish with chopped parsley and transfer to a serving platter with a flourish and a tiny bow if you’re feeling fancy.
What Else You Should Know
Tip: Searing the pork first isn’t optional if you like flavor; it’s the short, dramatic scene that makes the dinner awesome. That’s why a hot skillet and a minute or two per side matter—don’t skip it.
Variation: Swap the white wine for extra chicken broth if you prefer a non-alcoholic route, or add a splash of sherry for a sweeter, nuttier vibe. Timing: Cooking on low yields juicier pork; think of it as slow applause.
High is fine in a hurry, but watch the time. Thickening trick: If the sauce gets too thick, whisk in a little warm cooking liquid; if it’s too thin, simmer a bit longer or add another small cornstarch slurry.
Serving suggestion: Serve the pork medallions over creamy mashed potato, buttery polenta, or a bed of egg noodle for maximum cozy points. Storage: Leftover pork and sauce keep well refrigerated for up to three days; reheat gently to avoid drying the meat.
Make-ahead note: You can make the mushroom butter sauce ahead and reheat it slowly, then pour it over freshly sliced pork right before serving. Final thought: This recipe is proof you can be both lazy and impressive in the kitchen.
Your slow cooker does the heavy lifting; you get the applause.
