Balsamic Pot Roast is a delicious slow cooker pot roast recipe that’s a dinner the whole family is going to love. And this post has the recipe with some great tips for making post roast in the slow cooker.

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Square image for Slow Cooker Balsamic Pot Roast shown on plate with onions and sauce.

Slow Cooker Balsamic Pot Roast is a recipe I first made in the early days of my blog, and I made it over and over again. But after it had been on the site a few years, and my friend Bonnie told me she made it and loved it, I realized I wanted to make it again and take better photos!

Bonnie was kind enough to say she didn’t think the old photos were that bad, but trust me, these updated photos give you a much better idea of what a tasty recipe this is! And Balsamic Pot Roast is the perfect thing to cook on low all day in the slow cooker while you’re doing something else!

You can serve it without the onions if you have kids who don’t like them or just want fewer carbs. And I bet Balsamic Pot Roast will be a hit with the whole family, and I hope you end up making this over and over like I did!

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.)

Tips for Making Pot Roast in the Slow Cooker:

I’m not a pot roast expert, but I’ve made pot roast in the Crockpot enough times to have strong opinions about how it should be done. There are three things I think are important:

  1. First, brown the meat well before you put it in the Crockpot because browning creates flavor. DON’T skip this step!
  2. Second, don’t use too much liquid for crockpot cooking in general, but especially for pot roast. 
  3. Third, be sure there is plenty of flavor in the liquids you’re using. All day crockpot cooking can make foods bland if there isn’t a flavorful cooking liquid.

How low in carbs is the Balsamic Pot Roast?

This tasty pot roast served with onions and a small amount of sauce has 9 net carbs per serving with 58 grams of protein! If you skip the optional onions, the recipe will have only about 5 net carbs per serving.

Want a thicker sauce for this Balsamic Pot Roast?

Some people have wanted the sauce from this recipe to be thicker, and reader named Tracy left a comment saying she substitutes a 6 oz. can of tomato paste for the tomato sauce and her family loves it that way. You can also thicken the sauce with a small amount of cornstarch if you don’t mind a few more carbs.<//p>
Balsamic and Onion Pot Roast process shots collage

How to make Slow Cooker Balsamic Pot 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. I used a very thick chuck roast from Costco; here’s how my roast looked after I trimmed it. (I had to cut it to get the pockets of fat and get it to fit in my Crockpot.) I save all the scraps in a container which goes in the freezer, and then use them to make beef stock.
  2. Rub meat on both sides with steak seasoning and black pepper, then brown the roast very well.
  3. In a small saucepan on the stove, reduce 1 cup beef stock to 1/2 cup.
  4. While the meat browns, cut the onions and put them in the Crockpot.
  5. When the meat is brown put it in slow cooker on top of the onions, then deglaze the pan with 1/4 cup water, scraping off all browned bits, and add to reduced beef stock.
  6. Add balsamic vinegar and tomato sauce to beef stock and pour over  the pot roast. (If you’d like a thicker sauce a reader named Tracy recommends using a 6 oz. can of tomato paste instead of tomato sauce.)
  7. Cook on low 6-8 hours, until meat is tender.
  8. I drained all the liquid from the Crockpot and used a fat separator to remove the fat. After the fat is removed, reduce the liquid by about 1/3 by simmering it on the stove to make a sauce. (You could thicken it with a little cornstarch mixed with water if you want a thicker sauce.)
  9. Serve Balsamic Pot Roast hot and enjoy! And you might think the onions would be too done from being in the Crockpot all that time, but the onions were just as delicious as the meat.

Make it a Low-Carb Meal:

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

Slow Cooker Balsamic Pot Roast shown on serving plate with onions and fork in back.

Want more ideas for Beef in the Slow Cooker?

I know beef is more expensive now than it was in the days I created this recipe, but using a slow cooker is a great way to tenderize less expensive cuts of beef. If you’re a slow cooker fan you might like this collection of Low-Carb Slow Cooker Beef Recipes.

Weekend Food Prep:

The Balsamic Pot Roast 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!

Slow Cooker Balsamic Pot Roast
Yield: 6 servings

Slow Cooker Balsamic Pot Roast

Prep Time 25 minutes
Cook Time 8 hours
Total Time 8 hours 25 minutes

This Slow Cooker Balsamic Pot Roast is a deliciously and easy dinner thatโ€™s made in the Crockpot. And this Balsamic Pot Roast is a recipe the whole family will love.

Ingredients

  • 4 pounds boneless chuck roast, fat trimmed (see notes)
  • 1 T steak rub (see notes)
  • black pepper to taste
  • 1 T olive oil (depends on your pan)
  • 1/4 cup water to deglaze pan
  • 2 large onions, peeled and thickly sliced
  • 1 cup beef stock, reduced to 1/2 cup (see notes)
  • 1/2 cup balsamic vinegar (see notes)
  • 1/2 cup tomato sauce (see notes)

Instructions

  1. Trim as much fat as you can from roast, and cut if necessary to fit into Crockpot.
  2. Rub meat well with steak seasoning and black pepper.
  3. Heat pan with small amount of olive oil and brown roast well on both sides. This will take a few minutes; donโ€™t rush the browning step.
  4. While roast browns put 1 cup beef stock in saucepan, bring to a boil and cook until reduced to 1/2 cup.
  5. While the meat browns, cut the onions and put them in the Crockpot.
  6. When the meat is brown put it in slow cooker on top of the onions, then deglaze the pan with 1/4 cup water, scraping off all browned bits, and add to reduced beef stock. Add balsamic vinegar and tomato sauce to beef stock and pour over pot roast.
  7. (Or you could stop at this point and refrigerate browned roast, cut onions and mixed sauce ingredients and then put them in the Crockpot when you go to work in the morning. Donโ€™t refrigerate them in the crockery liner. Having the meat start out cold will add several hours to the cooking time, which will be good if youโ€™re cooking it all day while youโ€™re away.)
  8. Set Crockpot to low and cook 6-8 hours, until beef is tender. The meat might be partly submerged in liquid after this much time. (If I am home, I might turn the meat once or twice.)
  9. Remove meat from crockpot and cover with foil to keep warm.
  10. Drain liquid from Crockpot and remove as much of the fat as you can with fat separator or skimmer. Cook down liquid by about 1/3 by simmering in a small pan on the stove, and serve sauce with meat and onions.

Notes

I used a standardย 3 1/2 quart Crockpotย (affiliate link) for this recipe.

4 lbs. of chuck roast will be only about 3 pounds after trimming.

If you'd prefer a thicker sauce a reader named Tracy recommends using a 6 oz. can of tomato paste instead of the tomato sauce. This will be a bit higher in carbs for those who care about that.

I usedย Szeged Steak Rubย andย Fini Balsamic Vinegar but there are many good brands. (affiliate links) You can use one cup from a can of beef broth for this recipe, but be sure to reduce it by simmering until it's reduced to 1/2 cup.

Nutritional information is calculated using the entire amount of balsamic vinegar and tomato sauce that goes into the slow cooker, but you're probably not eating every bit of the sauce, so actual carb counts are probably slightly lower. If you skip the optional onions, each serving will have about 5 net carbs.

This recipe created by Kalyn, and it's been hugely popular on the site!

Nutrition Information

Yield

6

Serving Size

1

Amount Per Serving Calories 786Total Fat 49gSaturated Fat 20gTrans Fat 3gUnsaturated Fat 26gCholesterol 253mgSodium 374mgCarbohydrates 10gFiber 1gSugar 6gProtein 58g

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?

Did you make this recipe? Please leave a star rating (under the PRINT button in the recipe) or share a photo of your results on Instagram! THANKS!

Balsamic and Onion Pot Roast finished dish on serving plate

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Slow Cooker Balsamic Pot roast has about 9 net carbs per serving if you’re eating it with the onions. Balsamic vinegar and onions both have some carbs, so concentrate on the meat and go easy on the onions and sauce if you’re eating this for a low-carb diet. If you make it with the fat trimmed well, this is suitable for any phase of the original South Beach Diet,! 

Find More Recipes Like This One:
Use Slow Cooker Recipes to find more recipes like this one. Use the Diet Type photo index pages to find more recipes suitable for a specific eating plan. You might also like to follow Kalynโ€™s Kitchen on Pinterest, on Facebook, on Instagram, on TikTok, or on YouTube to see all the good recipes Iโ€™m sharing there.

Historical Notes for this Recipe:
This Balsamic Pot Roast recipe was first posted in 2007! It was updated with new photos in 2012, and was last updated with more information in 2025.

Pinterest image of Slow Cooker Balsamic Pot Roast

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