Everyone says you can just throw a pork loin in the slow cooker. That’s how you end up with dry, bland meat swimming in watery juice. The real magic for this Slow Cooker Pork Loin with Mushroom Sauce happens on the stovetop first.
This recipe fixes that by building a rich, savory gravy right in your crock pot. You get pork so tender it shreds with a fork, wrapped in a sauce packed with sherry, garlic, and thyme.
Here you’ll get the exact sear time for perfect browning and how to use cornstarch for a glossy gravy. I’ll also clear up the pork loin vs. tenderloin confusion so you buy the right cut.
Table of Contents
Why This Slow Cooker Pork Loin Recipe Works
Transforming an inexpensive cut
Most pork loin recipes in a crock pot end up dry. The key is treating it like a braise, not a roast. You sear the pork loin first to create a flavorful crust. Then it slow cooks for 6 hours submerged in savory liquid. This gentle heat breaks down the fibers without squeezing out all the moisture. You get meat that’s tender enough to pull apart, not tough and chewy.
The luxurious mushroom gravy
This isn’t a thin broth. We build a rich mushroom gravy right in the pot. Sautéing onions, garlic, and mushrooms with bacon creates a deep umami base. Deglazing with sherry adds a nutty sweetness that plain broth can’t match. A cornstarch slurry at the end transforms the juices into a glossy, restaurant-quality sauce that clings to every slice. It makes the entire meal feel special.
- Starts with a flavor-packed sear
- Builds a gravy with sherry and thyme
- Thickens to a perfect, spoon-coating consistency
Perfect for your monthly rotation
This Slow Cooker Pork Loin with Mushroom Sauce is your new reliable comfort food. The active prep is just 20 minutes of browning and sautéing. After that, your slow cooker does the work. It yields 8 servings, perfect for a family dinner with leftovers. The hearty gravy pairs with mashed potatoes or egg noodles for a complete meal. It’s as satisfying as this crockpot bbq pork tenderloin with smoky sauce, but with an elegant, savory twist.
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Slow Cooker Pork Loin with Sherried Mushroom Gravy
- Total Time: 380 min
- Yield: 8 servings 1x
Description
This slow cooker pork loin cooks for 6 hours in a savory sherry and mushroom gravy, becoming fork-tender. The active prep is just 20 minutes of browning and sautéing, making it a reliable comfort food meal.
Ingredients
For the Pork Loin:
3 lb pork loin roast (about 1.4 kg)
1 tsp kosher salt
1/2 tsp black pepper
For the Gravy Base:
6 slices bacon, chopped
1 large yellow onion, thinly sliced
3 cloves garlic, minced
8 oz cremini mushrooms, sliced (about 225g)
1/2 cup dry sherry (120 ml)
2 cups low-sodium chicken broth (480 ml)
1 tbsp fresh thyme leaves (or 1 tsp dried)
To Thicken:
2 tbsp cornstarch (16g)
2 tbsp water
Instructions
1. Pat the pork loin dry and season all over with salt and pepper.
2. In a large skillet over medium-high heat, cook the bacon until crisp. Remove with a slotted spoon, leaving the fat.
3. Sear the pork loin in the hot bacon fat for 3-4 minutes per side until browned on all surfaces.
4. Reduce heat to medium. Add the onions and cook for 3 minutes until softening.
5. Add the garlic and mushrooms. Cook for 5-7 minutes until mushrooms release water and brown.
6. Pour in the sherry to deglaze the pan, scraping up the browned bits. Simmer for 1 minute.
7. Transfer the seared pork to a slow cooker. Pour the mushroom mixture over it.
8. Add the cooked bacon, thyme, and chicken broth. The liquid should come halfway up the pork.
9. Cover and cook on LOW for 5-6 hours, until the pork reaches an internal temperature of 200°F.
10. Transfer the pork to a cutting board and tent with foil.
11. Whisk the cornstarch with cold water to make a slurry. Stir it into the hot juices in the slow cooker.
12. Cover and cook on HIGH for 20-30 minutes until the gravy thickens.
13. Slice or shred the pork and serve topped with the sherried mushroom gravy.
Notes
Store in the refrigerator for up to 5 days or freezer for up to 3 months. Reheat gently in a skillet over medium-low heat with a splash of water, or microwave in 30-second intervals.
Patting the pork loin completely dry before searing is essential for a good crust.
Start checking the pork for doneness at 5 hours to prevent overcooking.
No sherry? Use an additional 1/2 cup of chicken broth with a splash of white wine vinegar.
- Prep Time: 20 min
- Cook Time: 6 hours
- Category: Dinner, Main Course
- Method: Slow Cooker
- Cuisine: American
Nutrition
- Serving Size: 1 serving (with gravy)
- Calories: 420 kcal
- Sugar: 4 g
- Sodium: 580 mg
- Fat: 18 g
- Saturated Fat: 6 g
- Unsaturated Fat: 12 g
- Trans Fat: 0 g
- Carbohydrates: 9 g
- Fiber: 1 g
- Protein: 54 g
- Cholesterol: 115 mg
Slow Cooker Pork Loin Ingredients & Prep
Active Time: 6 hours Total Time: 6 hours 20 minutes Yield: 8 servings
- 3 lb pork loin roast (about 1.4 kg)
- 6 slices bacon, chopped
- 1 large yellow onion, thinly sliced
- 3 cloves garlic, minced
- 8 oz cremini mushrooms, sliced (about 225g)
- 1/2 cup dry sherry (120 ml)
- 2 cups low-sodium chicken broth (480 ml)
- 1 tbsp fresh thyme leaves (or 1 tsp dried)
- 2 tbsp cornstarch (16g)
- 2 tbsp water
- 1 tsp kosher salt
- 1/2 tsp black pepper
No sherry? Use 1/2 cup of additional chicken broth with a splash of white wine vinegar. No fresh thyme? Dried works fine, just use one-third the amount.
Choosing the right pork cut
You need a boneless pork loin roast, not a tenderloin. A pork loin is a wide, cylindrical cut, usually 3-4 pounds, perfect for slow cooking. A tenderloin is a thin, long muscle that cooks in half the time and will dry out. Look for a roast with a thin, even layer of fat on top. That fat will baste the meat as it cooks. Before you sear, pat it completely dry with paper towels. This is the single best trick for getting a proper brown crust.
The mushroom gravy base
Cremini mushrooms (baby bellas) are my pick for their deeper flavor, but white button mushrooms work too. The key is to sauté them with the bacon and onions until they release their water and start to brown. That concentrated flavor is the foundation of your gravy. Deglazing the pan with sherry after searing the pork is non-negotiable. It lifts all the browned bits (the fond) and adds a complex, nutty sweetness you can’t get from broth alone. It makes the gravy taste like it simmered for days.
Essential seasonings and aromatics
Fresh thyme is wonderful, but dried is what I usually have. If using dried, add it with the broth so it has time to rehydrate. I use low-sodium broth because the bacon adds plenty of salt. You can always add more at the end. The cornstarch slurry (mixed with cold water) is your finisher. Stir it in during the last 30 minutes to thicken the juices into a glossy, clingy sauce. For a different creamy twist on a sauce, the technique for how to make spicy mayo sauce creamy and hot starts with a similar slurry-based thickening principle.
How to make slow cooker pork loin with mushroom sauce
Follow these steps for a pork loin that’s tender, not dry, with a deeply flavorful gravy.
Step 1: Browning for maximum flavor
- Pat the pork loin completely dry with paper towels. Season it all over with the salt and pepper.
- In a large skillet over medium-high heat, cook the chopped bacon until crisp. Remove it with a slotted spoon, leaving the fat in the pan.
- Sear the pork loin in the hot bacon fat. Brown it for about 3-4 minutes per side until you have a golden-brown crust on all surfaces.
Watch Out: Don’t move the pork until it releases easily from the pan. That’s how you know a proper crust has formed.
Step 2: Building the gravy in the skillet
- Reduce the heat to medium. Add the sliced onions to the skillet. Cook for 3 minutes until they start to soften.
- Add the garlic and mushrooms. Cook, stirring occasionally, for 5-7 minutes until the mushrooms have released their water and begun to brown.
- Pour in the sherry to deglaze the pan. Use a wooden spoon to scrape up all the browned bits from the bottom. Let it simmer for 1 minute.
Chef’s Note: Those browned bits (the fond) are pure flavor. Deglazing with sherry is what makes this gravy taste so complex.
Step 3: Slow cooking to perfection
- Transfer the seared pork loin to your slow cooker. Pour the entire mushroom and onion mixture over and around it.
- Add the cooked bacon, thyme, and chicken broth. The liquid should come about halfway up the side of the pork.
- Cover and cook on LOW for 5-6 hours. The pork is done when it reaches an internal temperature of 200°F and shreds easily with a fork.
Quick Note: A shorter cook time prevents dryness. Start checking at 5 hours. For a savory side, these sweet potato fries maple mustard sauce are a fantastic contrast.
Step 4: Finishing and serving
- Carefully transfer the pork loin to a cutting board and tent it with foil.
- Whisk the cornstarch with cold water to make a slurry. Stir it into the hot juices in the slow cooker.
- Cover and cook on HIGH for 20-30 minutes until the gravy has thickened.
- Slice or shred the pork. Serve it topped generously with the sherried mushroom gravy.
Serving, storage and troubleshooting
Best ways to serve
This pork loin with its rich gravy is a complete meal centerpiece. Serve it sliced or shredded over creamy mashed potatoes, where they soak up every drop of the sherried mushroom sauce. For a lighter option, try it with egg noodles or steamed rice. Leftover shredded pork makes fantastic sandwiches the next day, especially with a dollop of this burger sauce recipe for a tangy kick.
Storing and reheating leftovers
Let the pork and gravy cool completely before storing them together in an airtight container. The flavors meld beautifully overnight.
| Storage Method | Duration |
|---|---|
| Refrigerator | Up to 5 days |
| Freezer | Up to 3 months |
Reheat gently to keep the meat tender. Use a skillet over medium-low heat with a splash of water or broth. You can also microwave portions in 30-second intervals, stirring between each.
Common issues and how to fix them
Troubleshooting
| Problem | Solution |
|---|---|
| Dry, tough pork | You overcooked it. For a 3 lb roast, don’t exceed 6 hours on LOW. Start checking at 5 hours. The ideal internal temperature for shredding is 200°F. |
| Thin, watery gravy | Your sauce didn’t thicken. Whisk 1 tbsp cornstarch with 1 tbsp cold water into a slurry. Stir it into the hot slow cooker juices and cook on HIGH for 20-30 minutes. |
| Bland, pale sauce | You skipped the sear or deglazing. Browning the pork loin and scraping the fond with sherry builds essential flavor. Don’t rush these steps. |
| Gravy is too salty | You likely used regular broth with salty bacon. Next time, use low-sodium broth. For now, stir in a peeled, raw potato wedge while reheating to absorb some salt, then remove it. |
Your slow cooker pork loin with mushroom sauce questions, answered
What is the difference between a pork loin and a pork tenderloin?
They are completely different cuts. A pork loin is a wider, 3-4 pound roast perfect for the 6-hour slow cook in this recipe. A tenderloin is a thin, long muscle that cooks much faster and will dry out if cooked this long. Always buy a boneless pork loin roast for this Slow Cooker Pork Loin with Mushroom Sauce.
Do you have to use sherry in this recipe?
No, but it adds a unique nutty sweetness. You can substitute with 1/2 cup of additional chicken broth mixed with a teaspoon of white wine vinegar. The key is still deglazing your searing pan with some liquid to lift the flavorful browned bits, which is essential for a rich gravy.
How do I cook a pork loin in a slow cooker?
Sear it first for a crust, then slow cook it in liquid. For a 3 lb roast, cook it on LOW for 5-6 hours with the mushroom and broth mixture until it reaches an internal temperature of 200°F and shreds easily. This braising method keeps it tender. See the troubleshooting section above for more details.
This Slow Cooker Pork Loin with Mushroom Sauce is worth making for its flavor and texture. The pork loin becomes so tender it practically melts, while the mushroom gravy has a savory depth that makes every bite satisfying.
You get restaurant-quality results from your crock pot because we treat the pork right. Searing it first locks in juices and creates those browned bits that build the gravy’s flavor. Cooking it low and slow for 6 hours in that sherry-infused broth transforms an affordable cut into something special.
The real test is how it reheats. The leftovers taste even better the next day, once the gravy has soaked into the meat overnight. That’s when you know a recipe is a keeper. It improves with time, just like a good stew.
Serve it over mashed potatoes or buttered egg noodles. The rich sauce needs something to soak into. A simple green salad on the side cuts through the richness perfectly.
Make this for Sunday dinner. You’ll have a comforting meal ready with minimal effort, and plenty left for easy lunches. It’s the kind of recipe you’ll come back to all winter.