How To Cook Pork Loin Roast In A Slow Cooker

Slow Cooker Balsamic Pork Roast

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Slow Cooker Balsamic Pork Roast features inexpensive and low-carb pork loin roast cooked in the slow cooker. And trust me, this is amazing! See the link below if you prefer making it in the Instant Pot.

PIN Slow Cooker Balsamic Pork Roast to make it later!

Slow Cooker Balsamic Pork Roast finished roast on serving plate

Food blogging can be pretty frustrating at times, but especially when you've made a recipe that tasted great, but the photos didn't really make the food look good. And years ago I made this Slow Cooker Balsamic Pork Roast and posted it with photos that were kind of ho-hum. The pork roast was delicious and a surprising number of people still made it, but I am SO happy to be updating the post with better photos!

When we updated the photos we decided to skip the red onions that cooked along with the pork in the original version, but I will still include that in the recipe for anyone who was a fan of that. And I used pork loin roast for a larger roast, but you can also make this with one of those very inexpensive and lean pork sirloin tip roasts that come in a four-pack at Costco. Get out your slow cooker and make this tasty pork loin roast! You'll love this for an easy dinner idea.

What ingredients do you need for this recipe?

pork loin roast
Rosemary and Garlic Herb Rub, or other rub that's good on pork
olive oil
beef broth, simmered to reduce
1/4 cup balsamic vinegar
red onions, cut into thick slices and separated into rings (optional)

Want Instant Pot Pork Loin Roast?

If you prefer using the Instant Pot, check out the recipe for Instant Pot Balsamic Pork Roast.

What size slow cooker did I use?

I used a Crock-Pot 3 Quart Slow Cooker (affiliate link) for this recipe, but a slightly larger size will also work fine.

Slow Cooker Balsamic Pork Roast process shots collage

How to Make Slow Cooker Balsamic Pork Roast:

(Scroll down for actual printable recipe including nutritional information.)

1. We started by making Rosemary and Garlic Herb Rub to season the pork roast. (Any seasonings with similar ingredients can work.)
2. I trimmed most of the fat from the pork loin roast.
3. Then we rubbed it on all sides with about one tablespoon of the rub.
4. Then we heated some olive oil in a large frying pan and browned the roast well on all sides.
5. Put the roast in the slow cooker, then deglaze the pan with the beef stock and simmer to reduce by half..
6. Then add the balsamic vinegar, reduce heat to medium, and cook about 5 minutes.
7. Pour the liquid over the roast in the slow cooker and cook for about 2 hours on high (or 4-5 hours on low).
8. If you're home turn the roast over, and cook it for about 60-90 minutes more on high. (Add sliced red onions on top of the meat if you're using them.)
9. The pork is done when it reaches 145F-65C on an Instant Read Meat Thermometer (affiliate link); start testing it after about 3 hours.
10. Remove pork to a cutting board and let it rest about 5 minutes. (Cover with foil to keep warm if you like.)
11. You might want to use a Fat Separator (affiliate link) to remove fat from the cooking sauce, or put liquid back into the frying pan and simmer to reduce for about 20 minutes so the flavor is a little more concentrated.
12. Then slice the meat, arrange on serving plate, and serve with the sauce. Serve hot.
More Tasty Ideas with Pork for Dinner:

Slow Cooker and Pressure Cooker Pork Recipes ~ Slow Cooker or Pressure Cooker
Slow Cooker Bavarian Pork Roast ~ Kalyn's Kitchen
Pork Tenderloin with Mustard Sauce ~ Kalyn's Kitchen

Weekend Food Prep:

This recipe has been added to a category called Weekend Food Prep to help you find recipes you can prep or cook on the weekend and eat during the week!
Ingredients
- 3 lb. pork loin roast (see notes)
- 1 T Rosemary and Garlic Herb Rub (see notes)
- 1 T olive oil
- 1 cup beef broth, simmered to reduce
- 1/4 cup balsamic vinegar
- 3 small red onions, cut into thick slices and separated into rings (optional)
Instructions
1. We started by making Rosemary and Garlic Herb Rub to season the pork roast. If you don't have those exact spice and herb blends, any seasonings with similar ingredients can work.
2. Trim most of the fat from the pork loin roast.
3. Rubbed the roast on all sides with about one tablespoon of the rub.
4. Heated the olive oil in a large frying pan and brown the roast well on all sides. (This will take 5-10 minutes; don't rush the browning step.)
5. Put the roast in the slow cooker, then deglaze the pan with the beef stock scraping of any browned bits in the pan, and simmer and simmer until stock is reduced by half..
6. Then add the balsamic vinegar, reduce heat to medium, and cook about 5 minutes.
7. Pour the liquid over the roast in the slow cooker and cook for about 2 hours on high or 4-5 hours on low. (Add sliced red onions on top of the meat when it's partly done if you're using them.)
8. The pork is done when it reaches 145F-65C on an Instant Read Meat Thermometer (affiliate link) if you want to start testing it after about 3 hours.
9. Remove pork to a cutting board and let it rest about 5 minutes. (Cover with foil to keep warm if you like.)
10. You might want to use a Fat Separator (affiliate link) to remove fat from the cooking sauce, or put liquid back into the frying pan and simmer to reduce for about 20 minutes so the flavor is a little more concentrated. (Taste it and see what you think.)
11. Then slice the meat, arrange on serving plate, and serve with the sauce. Serve hot.
Notes

I used a Crock-Pot 3 Quart Slow Cooker (affiliate link)) for this recipe, but a slightly larger size will work.

I originally made this with pork sirloin tip roast; use that if you prefer. I used Rosemary and Garlic Herb Rub, but similar herb blends will work.

Recipe created by Kalyn.

Nutrition Information:

Yield:
8
Serving Size:
1
Amount Per Serving: Calories: 355 Total Fat: 17g Saturated Fat: 5.1g Unsaturated Fat: 9.1g Cholesterol: 136mg Sodium: 140mg Carbohydrates: 2.2g Fiber: .2g Sugar: 1.4g Protein: 46g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.
Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Slow Cooker Balsamic Pork Roast uses lean pork roast with the fat trimmed which is perfect for the original South Beach Diet. This recipe is also Paleo and it's suitable for any type of Low-Carb diet, although you may want to skip the onions like we did if you're trying to limit carbs. You could make this with a higher-fat pork roast for other low-carb diet plans.

Find More Recipes Like This One:
Use Slow Cooker Recipes to find more dinners like this one. Use the Recipes by Diet Type photo index pages to find more recipes suitable for a specific eating plan. You might also like to Follow Kalyn's Kitchen on Pinterest to see all the good recipes I'm sharing there. See Slow Cooker / Instant Pot Recipes on my other site!

Historical Notes for this Recipe:

This recipe was posted in 2013. It was updated with new photos and better information in 2021.

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Categories: Can Freeze, Kid Friendly, Recipes, Slow Cooker, Weekend Food Prep, Dairy-Free, Gluten-Free, Low-Carb, South Beach Diet
Ingredients: Pork

originally published on Jan 3, 2014 (last updated Oct 1, 2021) by Kalyn Denny

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