Craving a dinner that smells like a restaurant but requires zero tuxedo effort? Slow cooker magic is here to rescue your weeknight.
This pork tenderloin gets a buttery, mushroom-thyme hug and cooks itself while you pretend to be productive. But here’s the catch!
It tastes like you slaved for hours—only you didn’t.
Contents
Equipment: Must-haves
- Slow cooker (crockpot)
- Skillet or frying pan
- Sharp knife
- Cutting board
- Tongs
- Measuring spoons
Equipment: Nice-to-haves
- Meat thermometer
- Kitchen twine
- Serving platter
- Cast iron skillet (for extra sear)
Ingredients
- 1 pork tenderloin (about 1 lb) — single hero of the dish
- 2 tablespoon butter — for that luxurious finish
- 1 cup mushroom, sliced (cremini or button) — earthy and chatty
- 1 small onion, thinly sliced — for sweet background vocals
- 2 clove garlic, minced — because garlic is the boss
- 1 cup chicken broth — the flavor elevator
- 1 tablespoon Dijon mustard — sneaky tang
- 1 tablespoon soy sauce — umami wingman
- 1 tablespoon olive oil — for the sear
- 1 teaspoon fresh thyme leaves (or 1 thyme sprig) — aromatic charm
- 1 teaspoon cornstarch — for silky sauce (optional)
- 2 tablespoon water — for slurry if using cornstarch
- Salt, to taste — don’t be shy
- Black pepper, to taste — freshly ground if possible
Instructions
- Pat the pork tenderloin dry and season it with salt and pepper like you mean it.
- Tie the tenderloin loosely with kitchen twine if you want even cooking and a professional vibe.
- Heat a skillet with olive oil over medium-high heat until it sizzles and is just shy of dramatic.
- Sear the tenderloin on all sides until a golden crust forms, using tongs to rotate—this step locks in flavor so the slow cooker doesn’t throw a pity party.
- Transfer the seared tenderloin to the slow cooker and set it aside on a little temporary pedestal (aka the bottom).
- In the same skillet, melt butter and add sliced mushroom and onion, stirring until they start to soften and brown; scrape up the good bits from the pan.
- Add minced garlic and thyme to the skillet and cook briefly until fragrant—don’t let the garlic audition for a bitter solo.
- Pour chicken broth into the skillet and stir in Dijon mustard and soy sauce to make a saucy, savory chorus.
- Pour the mushroom-onion sauce over the tenderloin in the slow cooker so everything gets cozy together.
- Cover and cook on low for several hours until the pork reaches a safe and juicy doneness—low and slow is the name of the game.
- If you prefer a quicker finish, cook on high for less time but check the meat sooner to avoid overcooking.
- Once the pork is cooked, carefully remove it to a serving platter and tent it with foil to rest so the juices don’t stage an escape.
- If you want a thicker sauce, skim fat from the slow cooker liquid, whisk cornstarch with water, then stir the slurry into the hot liquid in the skillet and simmer until glossy and slightly thickened.
- Slice the rested pork against the grain and drizzle with the mushroom-thyme butter sauce for maximum applause.
- Garnish with an extra sprinkle of fresh thyme and a crack of black pepper, then serve with whatever sides make you happy (mashed potato, green veg, or something that smiles back).
What Else You Should Know
Timing tip: Cooking on low gives the most tender result and less chance of drying the meat. Temperature tip: Aim for the pork to reach an internal temperature of 145°F and then rest; that keeps it juicy and perfectly safe.
Variation: Swap chicken broth for white wine for a brighter sauce, if you’re feeling fancy without the tux. Make-ahead: The sauce keeps well and actually gets tastier the next day, so make extra for sandwiches (yes, sandwiches).
Serving idea: Spoon the mushroom-thyme butter over sliced pork on a warm platter and serve with mashed potato or roasted root vegetable for comfort-level over 9000. Storage: Refrigerate leftovers in an airtight container for up to three days.
Final joke: If your house doesn’t smell like garlic and thyme after this, check for a functioning nose.
