Craving a cozy dinner that practically cooks itself while you pretend to be productive? You’re in luck—this crock pot method turns a single pork tenderloin into dinner-table glory with an irresistible mushroom country sauce.
But here’s the catch! A quick sear before the slow-cook step makes the final dish sing.
Stick around and I’ll walk you through the friendly equipment, the simple ingredients, and playful steps so you can impress without the stress.
Contents
Equipment: Must-haves
- Crock pot (slow cooker)
- Cast-iron skillet or heavy skillet
- Sharp knife
- Cutting board
- Tongs
- Meat thermometer
- Wooden spoon
- Measuring spoons
Equipment: Nice-to-haves
- Whisk
- Ladle
- Small bowl (for slurry)
- Serving platter
- Fine mesh strainer
Ingredients
- 1 (about 1 to 1.5 lb) pork tenderloin
- 1 tbsp olive oil
- 1 tsp salt
- 1/2 tsp black pepper
- 1/2 tsp garlic powder
- 1/2 tsp onion powder
- 2 tbsp butter
- 8 oz mushroom, sliced
- 1 small onion, diced
- 2 cloves garlic, minced
- 1 cup chicken broth
- 1 tbsp Dijon mustard
- 1 tbsp Worcestershire sauce
- 1 tsp brown sugar
- 1 bay leaf
- 1 tsp fresh thyme (or 1/4 tsp dried thyme)
- 1/2 cup heavy cream
- 1 tsp cornstarch
- 1 tbsp water
- Fresh parsley, chopped (for garnish)
Instructions
- Pat the pork tenderloin dry and season it all over with salt, pepper, garlic powder, and onion powder.
- Heat the skillet over medium-high and add olive oil until it shimmers like it wants attention.
- Sear the pork on all sides until nicely browned to lock in flavor, then remove and set aside.
- Reduce heat slightly and add butter to the same skillet, scraping up the flavorful bits left behind.
- Add the mushroom and onion to the skillet and sauté until they soften and release their juices.
- Stir in the garlic and cook briefly until fragrant.
- Pour some chicken broth into the skillet to deglaze, scraping the pan so nothing goes to waste.
- Stir in Dijon mustard, Worcestershire sauce, brown sugar, bay leaf, and thyme to build the sauce base.
- Place the seared pork into the crock pot and pour the skillet mixture over it so the pork naps in flavor.
- Cover and cook on low until the pork reaches the proper internal temperature, or cook on high for a faster option.
- When the pork is done, transfer it to a cutting board and let it rest so the juices stay where they belong.
- Mix cornstarch and water in a small bowl to make a slurry while you return the sauce from the crock pot to the skillet.
- Bring the sauce to a gentle simmer and whisk in the heavy cream, then add the slurry to thicken the sauce to a silky finish.
- Taste and adjust seasoning, remove the bay leaf, and stir in chopped parsley for brightness.
- Slice the rested pork against the grain, arrange on a platter, and spoon the warm mushroom country sauce over the top before serving.
What Else You Should Know
Tip: Searing the pork first seems like an extra step, but it adds deep flavor and keeps the meat juicy. That’s why I never skip it.
Variation: Swap the mushroom for porcini rehydrated in warm water for a more intense, earthy sauce. You can also use half-and-half instead of heavy cream for a lighter finish.
Serving suggestion: Spoon the pork and sauce over mashed potato, buttered egg noodle, or a rustic slice of bread to catch every last drop. Your plate will thank you.
Make-ahead: Cook the pork and store the sauce separately. Reheat gently on the stove and slice the pork just before serving for the best texture.
Storage: Keep leftovers in an airtight container in the fridge for up to three days. Reheat slowly over low heat so the sauce doesn’t separate—nobody likes curdled cream.
Pro tip: Use a meat thermometer to check doneness; pull the pork at 145°F and let it rest—this gives a tender, slightly pink center without drama. But here’s the fun part: this recipe is forgiving.
Slow-and-low will rescue many dinner disasters, and this sauce will make everyone think you planned it for weeks. Go on—pour yourself a drink and let the crock pot do the heavy lifting.
