Side Dishes
That first whiff of this amazing pork tenderloin slow cooker recipe with potatoes and garlic will make every weeknight dinner feel like a celebration. š I've been perfecting this one-pot wonder for yearsājuicy pork tenderloin that falls apart with a single fork and potatoes so fluffy they practically melt in your mouth.
The secret? A simple marinade that locks in moisture while the slow cooker does all the work.
No fancy techniques hereājust a few basic ingredients and about 4 hours of hands-off cooking. The pork gets marinated in garlic, mustard, and herbs while the potatoes soak up flavor in the same pot.
By the time you're ready to serve, you'll have a restaurant-quality meal with minimal effort and just one pot to clean. My grandmother used to say good cooking was about patience, and this recipe proves she was right.
What makes this dish truly amazing is how it transforms simple ingredients into something special. The pork stays incredibly tender, the potatoes become pillowy and golden, and the flavors meld together perfectly.
It's the kind of meal that makes you feel like you've earned your dinnerāand the best part? You can set it and forget it while you handle the rest of your day.
Serve this with a simple green salad or crusty bread to soak up every last bit of that flavorful juices. Leftovers reheat beautifully too, making it perfect for meal prep. Let's get startedāyour slow cooker is about to become your new best friend.
Ingredients for amazing pork tenderloin slow cooker recipe with potatoes and
Simple ingredients that transform into restaurant-quality pork tenderloin and fluffy potatoes in one pot.
| Ingredient | Amount | Notes |
|---|---|---|
| Pork Tenderloin š„© | 1 Ā½ lb | Center-cut, trimmed of fat |
| Baby Potatoes š„ | 2 lbs | Halved, unpeeled, scrubbed clean |
| Garlic Cloves š§ | 6 cloves | Minced, fresh preferred |
| Yellow Mustard šÆ | Ā½ cup | Dijon or whole-grain preferred |
| Olive Oil š« | Ā¼ cup | Extra-virgin for richness |
| Dried Thyme šæ | 1 tbsp | Or 2 tbsp fresh thyme leaves |
| Dried Rosemary šæ | 1 tsp | Crushed between fingers |
| Salt š§ | 1 Ā½ tsp | Kosher or sea salt |
| Black Pepper š¶ļø | 1 tsp | Freshly ground preferred |
| Chicken Broth š§ | 1 cup | Low-sodium preferred |
| Apple Cider Vinegar š | 1 tbsp | For tenderizing pork |
| Fresh Parsley šæ | Ā¼ cup | Chopped, for garnish |
| Butter š§ | 2 tbsp | Unsalted, for finishing |
The pork tenderloin is the star hereācenter-cut and trimmed ensures the juiciest results. Costco or Whole Foods usually have the best quality, but any grocery store's butcher section will do. Look for a piece with good marbling and vibrant color. Baby potatoes are ideal (they cook faster), but regular potatoes work if you cut them into even chunks. Fresh herbs like thyme and rosemary make all the differenceāTrader Joe's has great dried options if you're in a pinch, but fresh is best. The mustard adds depth, so don't skip itāDijon or whole-grain gives the best flavor.
No mustard? Substitute with 1 tbsp honey for sweetness, though it'll change the flavor profile. Fresh garlic is non-negotiableājarred minced garlic lacks the punch. Running out of time? Pre-minced garlic from the jar works in a bind, but fresh is always better. The baby potatoes can be swapped for Yukon golds if that's what you haveājust increase cooking time by 30 minutes. For extra richness, add a splash of cream or sour cream at the end, but keep it optional for a lighter dish. The apple cider vinegar tenderizes the pork beautifullyāwhite vinegar works too if that's what you've got.
This dish is all about convenienceā4 hours on low means you can prep in the morning and come home to dinner ready. The potatoes stay tender and the pork falls apart with a fork. Store leftovers in the fridge for 3-4 days or freeze for 3 months. I always double the recipe because it reheats perfectly for lunches. The flavors actually get better the next day as everything melds together. Serve with crusty bread to soak up all those juicesāit's the best part!
Why You'll Love This Recipe
- Five-Ingredient Magic: I swear by this comboātenderloin, baby potatoes, garlic, mustard, and olive oil. Thatās it. No fancy pantry trips or last-minute grocery runs. Honestly, the mustard ties everything together like a secret handshake.
- Slow-Cooker Crisp: The potatoes get fork-tender while the pork stays juicy, but hereās the kicker: the mustard and olive oil create this caramelized crust on the pork thatās crispy enough to satisfy anyone who thinks slow cooker means mushy. (Yes, even on a Tuesday night.)
- Weeknight to Dinner Party: Same recipe, two vibes. Toss it in the slow cooker for a no-fuss family meal, or let it simmer longer for a restaurant-worthy dish when companyās over. My in-laws asked for the recipe after one biteāno exaggeration.
- Leftovers? More Like Leftovers: This makes way more than youāll eat in one sitting, and the best part? The flavors get richer overnight. Reheat slices with a splash of broth or broth, and itās like eating it fresh. (My lunchbox hero for days.)
Step-by-step instructions for juicy pork tenderloin and fluffy potatoes
Here's how to transform simple ingredients into melt-in-your-mouth pork and perfectly tender potatoes.
šØāš³ Step 1: Prep the Pork and Potatoes for Maximum Flavor
Start by patting the 1.5 lb pork tenderloin completely dry with paper towels. This step is crucialāit ensures a better sear and prevents steam from making the meat tough. Rub the pork all over with 2 tbsp olive oil, then sprinkle evenly with 1.5 tsp salt, 1 tsp black pepper, 1 tbsp dried thyme, and 1 tsp crushed dried rosemary. Press the seasoning firmly so it sticks.
Meanwhile, halve the 2 lbs baby potatoes (leave the skins on for texture) and scrub them clean with a vegetable brush. Toss the potato halves in a large bowl with 1 tbsp olive oil, 1 tsp salt, and Ā½ tsp black pepper. Give them a good shake so every surface gets coated. Here's the thingācoating the potatoes now means they'll absorb all that delicious pork flavor during cooking.
š³ Step 2: Sear the Pork for Deep Flavor
Heat a large skillet over medium-high heat until it's hot enough to make a drop of water sizzle immediately. Add the pork tenderloin and sear for 2-3 minutes per side until it develops a deep golden-brown crust. Don't move it aroundālet it sit undisturbed so you get that beautiful caramelization. You'll know it's ready when it releases easily from the pan.
While the pork sears, transfer the seasoned potatoes to the same skillet (yes, the same one!) and spread them out in a single layer. Cook them for 5-6 minutes until they start to brown in spots. This gives them a head start on flavor while the pork finishes. Remove both the pork and potatoes to your slow cooker.
š„ Step 3: Build the Slow Cooker Sauce
In the same skillet (don't wash it!), reduce the heat to medium and add the 6 cloves minced garlic. SautĆ© for 30 seconds until fragrantādon't let it burn! Pour in the 1 tbsp apple cider vinegar and scrape up any browned bits from the bottom (this is pure flavor). Let it simmer for 1 minute until the vinegar reduces slightly.
Add the Ā½ cup yellow mustard and 1 cup chicken broth to the skillet, stirring until smooth. Pour this mixture over the pork and potatoes in the slow cooker. The mustard and vinegar combo works magicāit tenderizes the pork while adding depth of flavor. If you prefer a creamier sauce, you could add 2 tbsp butter now, but I like the tangy richness of the mustard-based sauce.
ā° Step 4: Slow Cook to Juicy Perfection
Place the lid on the slow cooker and cook on low heat for 6-7 hours (or 3-4 hours on high). The pork is done when it reaches an internal temperature of 145Ā°F and the potatoes are fork-tender with no resistance. Here's where the magic happensāthe slow cooking transforms tough pork into melt-in-your-mouth tenderness while keeping the potatoes perfectly fluffy.
Real talk: Don't peek under the lid or you'll lose heat and steam. Every time you lift that lid, you add 15-20 minutes to your cooking time. The pork should pull apart easily with two forks, and the potatoes should be so tender they practically fall apart when pierced. If the potatoes seem dry, add Ā¼ cup water to the slow cooker during the last 30 minutes of cooking.
š½ļø Step 5: Finish with Butter and Garnish
When everything is perfectly tender, transfer the pork to a cutting board and let it rest for 5 minutes (this keeps it juicy). Meanwhile, stir the 2 tbsp butter into the slow cooker along with the cooking juices until melted and creamy. Taste and adjust seasoning if neededāsometimes the mustard needs a little more salt to balance it.
Slice the pork into Ā½-inch thick medallions and serve it over the potatoes. Garnish with Ā¼ cup chopped fresh parsley** for a pop of color and freshness. Each bite should deliver juicy, tender pork with perfectly fluffy potatoes that soak up all that delicious sauce. This is the kind of meal that makes people ask for secondsātrust me!
Pro Tips For Making Amazing Pork Tenderloin Slow Cooker Recipe With Potatoes And
- SEAR THE PORK FIRST: I learned this the hard wayāskipping the sear means flavor hiding in the slow cooker. Hit that pork with olive oil and high heat until itās golden, then add garlic and a splash of mustard to the pan before deglazing. The crust locks in juices and adds depth that no slow cooker alone can deliver.
- USE HALVED POTATOES: Baby potatoes stay stubbornly undercooked if you leave them whole. Halve them (skin on) so they absorb the mustard-garlic sauce faster and cook evenly. No one wants mushy or rock-hard spuds in the same pot.
- SALT THE POTATOES BEFORE COOKING: Trust me, salting the potatoes before they go into the slow cooker makes a real difference. Toss them with a pinch of salt and olive oil while you sear the porkātheyāll crisp slightly on the edges and soak up flavor like a sponge.
- ADD MUSTARD LAST: Mustard burns slower than you think, and adding it too early turns your sauce bitter. Wait until the pork and potatoes have cooked for 2 hours before dumping in that yellow mustardāitāll blend smoothly and coat everything without overpowering.
Perfect pairings for these flavors
Creamy Garlic Mashed Potatoes
Skip the potatoes in the slow cooker and make a side of ultra-creamy mashed potatoes instead.
Boil the 2 lbs baby potatoes in salted water for 15 minutes until tender, then drain and mash with 4 tbsp butter, Ā½ cup warm chicken broth, and Ā½ cup sour cream. Fold in Ā½ cup grated Parmesan and season with salt and pepper to taste.
The rich, velvety texture contrasts perfectly with the tender pork. š„
Apple Cider Glaze
Transform the slow cooker juices into a sweet-tangy glaze by simmering Ā½ cup apple cider, 2 tbsp brown sugar, and 1 tbsp Dijon mustard in a small saucepan for 5 minutes.
Brush this glaze over sliced pork tenderloin just before serving for a caramelized finish. The acidity cuts through the richness beautifully.
Crispy SautƩed Green Beans
For a fresh, crisp side, sautĆ© 1 lb green beans in 1 tbsp olive oil with 2 minced garlic cloves and Ā½ tsp red pepper flakes for 5-6 minutes until bright green and slightly blistered.
Toss with 1 tbsp lemon juice and salt to finish. The crunch adds a fantastic textural contrast to the tender pork and potatoes. āØ
Crusty Bread for Soaking
No meal is complete without crusty bread to soak up those flavorful juices. Toast a baguette or sourdough until golden, then cut into thick slices. Serve alongside the pork and potatoes for the ultimate comfort-food experience. I love Whole Foods' French Baguette for thisāit's perfect for dipping. š„
Simple Arugula Salad
Balance the richness with a peppery arugula salad tossed with 2 tbsp olive oil, 1 tbsp lemon juice, 1 tbsp honey, and shaved Parmesan. The bright flavors cleanse your palate between bites of pork.
Add toasted walnuts for crunch if you like. This salad takes 5 minutes to throw together and makes the whole meal feel lighter. šæ
Warm Dinner Rolls
Warm homemade or store-bought dinner rolls (I love Pepperidge Farm for convenience) straight from the oven add a cozy touch. Brush them with garlic butter and sprinkle with coarse sea salt for an easy, crowd-pleasing side. The soft rolls are perfect for mopping up every last bit of sauce. š
Nutrition facts
Frequently asked questions
Can I use regular potatoes instead of baby potatoes in this recipe?
Yes, but you'll need to adjust the cooking time! Regular potatoes (like Yukon golds) should be cut into 1-inch chunks and will take about 30-45 minutes longer than baby potatoes. The key is even-sized pieces so they cook uniformly. If you're short on time, parboil them for 5 minutes before adding to the slow cooker.
What if my pork tenderloin is larger than 1.5 lbs?
Adjust your cooking time by 15-20 minutes per extra pound on low heat. For example, a 2 lb pork tenderloin would need about 7-8 hours on low. Use a meat thermometer to check donenessāit should reach 145Ā°F internally. The pork will continue cooking slightly after removing from the slow cooker, so don't overcook it.
Can I make this recipe in an Instant Pot instead?
Sear the pork and potatoes as directed, then add all ingredients to your Instant Pot. Cook on high pressure for 25 minutes, followed by a 10-minute natural release. The pressure cooking time is much faster but still gives you tender, juicy results. Just be sure to check the internal temperature of the pork afterward.
Why did my pork turn out dry?
Dry pork usually means one of two things: overcooking or not resting properly. The slow cooker should never exceed 145Ā°F internally. Always let the pork rest for 5-10 minutes after cooking before slicingāthis lets the juices redistribute. Also, avoid lifting the lid during cooking, as each peek releases steam and adds 15-20 minutes to cooking time.
Can I freeze leftovers?
Yes! Store leftovers in an airtight container for up to 3 months in the freezer. To reheat, transfer to a skillet with a splash of water or broth and warm over medium-low heat until heated through. The flavors actually improve after freezingāthis dish tastes even better the next day as everything melds together.