Slow Cooker Balsamic Pork Roast

This Slow Cooker Balsamic Pork Roast is an incredibly easy recipe for cooking pork loin roast in the slow cooker. And trust me, this roast pork is amazing for an easy dinner; see the link below if you prefer making it in the Instant Pot.

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Slow Cooker Balsamic Pork Roast is a recipe I first made years ago, and I posted it with photos that were kind of ho-hum. And Food blogging can be so frustrating when you make a recipe that tastes great, but the photos don’t really show off how good the recipe is. 

So today I am SO happy to be updating this recipe for Balsamic Pork Roast with better photos! When we updated the photos we skipped the red onions that cooked along with the pork in the original version, Skipping the onions made this recipe lower in carbs, but I’m including that option in the recipe for onion fans.

I used pork loin roast for the updated recipe, which made 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 balsamic pork roast! You’ll love this for an easy dinner idea.

What ingredients do you need for this recipe?

(This is only a list of ingredients; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe with ingredient amounts.)

• pork loin roast
• Rosemary Garlic Seasoning, or other rub that’s good on pork
• Olive Oil (affiliate link)
• canned beef broth (affiliate link), simmered to reduce
• Balsamic Vinegar (affiliate link)
• red onions, cut into thick slices and separated into rings (optional)

Is Pork Loin Roast an inexpensive cut of meat?

There’s no doubt every type of meat is more expensive than it was when I first made this recipe. But pork loin roast is still a relatively inexpensive cut of meat and this will be great for a special dinner!

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 be fine.

Want Instant Pot Pork Loin Roast?

If you prefer using the Instant Pot, check out the Instant Pot version of balsamic pork roast.

How low in carbs is Slow Cooker Balsamic Pork Roast?

This pork roast dinner is not only delicious, but it only has 2 net carbs per serving, with 46 grams of protein.

How to Make Slow Cooker Balsamic Pork Roast:

(This is only a summary of the steps for the recipe; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe.)

1. We started by making Rosemary Garlic Seasoning. (Just use the individual ingredients if you don’t want to make the rub.)
2. Trim most of the fat from the roast.
3. Then rub it on all sides with about one tablespoon of the rub (or individual spices and herbs.)
4. Heat olive oil in a large frying pan and brown the roast well on all sides.
5. Put roast in the slow cooker, then deglaze the pan with beef stock and simmer to reduce by half..
6. Add balsamic vinegar, reduce heat to medium, and cook about 5 minutes.
7. Pour that liquid over the roast in the slow cooker and cook for about 2 hours on high (or 4-5 hours on low).
8. The pork is done when it reaches 145F-65C on an Instant Read Meat Thermometer (affiliate link). 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. You can also put liquid back in the frying pan and simmer to reduce for about 20 minutes so the flavor is a little more concentrated.
11. Then slice the meat, and arrange on a serving plate.
12. Serve Slow Cooker Balsamic Pork Roast hot, with the sauce.

Make it a Low-Carb Meal:

This Balsamic Pork Roast would taste great with one of these low-carb side dishes:

• Cauliflower Gratin
• Roasted Turnips
• Garlic-Roasted Green Beans
• Cabbage Gratin
• Twice-Baked Cauliflower

Weekend Food Prep:

This recipe for Slow Cooker Balsamic Pork Roast has been added to a category called Weekend Food Prep where you’ll find recipes you can prep or cook on the weekend and eat during the week!

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4.4 Stars (24 Reviews)

Yield: 8 servings

Slow Cooker Balsamic Pork Roast

Prep Time 30 minutes

Cook Time 3 hours

Total Time 3 hours 30 minutes

This Slow Cooker Balsamic Pork Roast features pork loin roast that gets tender and delicious when it’s cooked in the crockpot.

Ingredients

• 3 lb. pork loin roast (see notes)
• 1 T Rosemary Garlic Seasoning (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 Garlic Seasoning to season the pork roast. If you don't want to make the rub, just use those individual ingredients.
2. Trim most of the fat from the pork loin roast.
3. Rub 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 pork 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 off any browned bits in the pan. Simmer until the 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); 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 Slow Cooker Balsamic Pork Roast on a serving plate.
12. Serve hot, with the sauce. 

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 Garlic Seasoning, but similar herb blends will work.

Recipe created by Kalyn.

Nutrition Information

Yield

8

Serving Size

1
Amount Per Serving Calories 355Total Fat 17gSaturated Fat 5.1gUnsaturated Fat 9.1gCholesterol 136mgSodium 140mgCarbohydrates 2.2gFiber .2gSugar 1.4gProtein 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.

Did you make this recipe?

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Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Slow Cooker Balsamic Pork Roast is suitable for any type of Low-Carb or Keto diet, although skip the onions like we did if you’re trying to limit carbs. The recipe can use lean pork roast with the fat trimmed which is perfect for the original South Beach Diet. You could make it 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, on Facebook, on Instagram, on TikTok, or on YouTube to see all the good recipes I’m sharing there.

Historical Notes for this Recipe:
This Balsamic Pork Roast made in the slow cooker was first posted in 2013. It was updated with new photos in 2021 and last updated with more information in 2026.