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The Magical Slow Cooker » Recipes » Beef » Slow Cooker Maple Mustard Corned Beef

Slow Cooker Maple Mustard Corned Beef

by Sarah Olson on March 11, 2020 | Updated June 19, 2022 97 Comments

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Collage of maple mustard corned beef images with text of what ingredients are needed.
collage of maple mustard corned beef photos for pinterest

Maple and Mustard flavor this easy Slow Cooker Corned Beef which is perfect for a change of pace on St. Patrick’s Day.

For the last few years I’ve made a standard Corned Beef and Cabbage. Though that meal turns out great, I really wanted to step this meal up a notch. The first thing I did differently was I ditched that pickling seasoning packet that comes with the corned beef.

Slow Cooker Maple Mustard Corned Beef

This was the first time I’ve cooked a corned beef without the pickling packet, and I have no regrets! I could taste the true flavor of the meat, and I didn’t have peppercorns popping in my mouth. This is a fun and unique recipe to try for St. Patrick’s Day.

How to make Maple Mustard Corned Beef:

Collage of photos; corned beef in package, maple mustard mixture, browning corned beef in skillet
  1. Choose a corned beef, I use flat cut if I can find it though point cut works great too!
  2. Gather your ingredients; cooking oil to brown the corned beef, maple syrup, yellow mustard, garlic and black pepper.
  3. Mix together the sauce ingredients. Set aside.
  4. Brown the corned beef on all sides.
raw corned beef with maple mustard in crockpot
  • Pour the maple-mustard mixture over the corned beef. Place the lid on the slow cooker.
  • Cook for 7 hours on low.
  • Serve and enjoy.
finished maple mustard corned beef in slow cooker

What goes good with this?

  • Colcannon Potatoes (pictured) these are mashed potatoes with cabbage and bacon!
  • Mashed Red Potatoes
  • Steamed Cabbage
  • Buttery Carrots
  • Cabbage with Bacon
maple mustard corned beef with colcannon potatoes and carrots on a white plate

My other favorite recipes for St. Patrick’s Day:

  • Beer Bread – Recipe by Vintage Recipe Tin
  • Slow Cooker Classic Corned Beef and Cabbage
  • Slow Cooker Guinness Corned Beef and Cabbage
  • Slow Cooker Guinness Beef Stew
  • Slow Cooker Reuben Sandwiches
cut piece of corned beef

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plated maple mustard corned beef with colcannon potatoes and carrots

Slow Cooker Maple Mustard Corned Beef

4.95 from 39 votes
Corned beef flavored with maple and mustard. A fun alternative on St. Patrick's day!
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Course: Main Course
Cuisine: American
Prep Time: 20 minutes
Cook Time: 7 hours
Total Time: 7 hours 20 minutes
Servings: 8
Calories: 406kcal
Author: Sarah Olson

Equipment Needed:

  • Slow Cooker – 4 quart or larger

Ingredients:

  • 3 lb. flat cut corned beef roast ditch the spice packet
  • 2 tsp. cooking oil
  • 1/2 cup maple syrup
  • 1/4 cup yellow mustard
  • 1/4 tsp. black pepper
  • 1 garlic clove minced
US Customary – Metric

Instructions:

  • Pat the corned beef dry with a paper towel.
  • Set a large skillet on the stove top to medium-high heat. Add cooking oil to coat the bottom of the pan. When the oil is hot, brown the meat on all sides.
  • Place the browned corned beef into the slow cooker.
  • In a small bowl mix together the maple syrup, mustard, pepper, and garlic clove. Pour this sauce over the corned beef in the slow cooker.
  • Cover and cook and LOW for 7 hours, without opening the lid during the cooking time.
  • Serve with desired sides, I made mashed red potatoes, steamed carrots and cabbage.
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How to Video:

Recipe Notes:

What should I serve with this?
  • Colcannon Potatoes or Mashed Red Potaotes
  • Steamed Cabbage
  • Buttery Steamed Carrots
 

Nutrition Information:

Calories: 406kcal | Carbohydrates: 14g | Protein: 25g | Fat: 27g | Saturated Fat: 8g | Cholesterol: 92mg | Sodium: 2160mg | Potassium: 561mg | Fiber: 1g | Sugar: 12g | Vitamin C: 46mg | Calcium: 38mg | Iron: 3mg

Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.

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    Filed Under: Beef, Dinner, St. Patrick's Day

    Comments

    1. Robyn says

      April 23, 2022 at 8:02 am

      Can I use regular syrup, like Mrs. Butterworth’s, instead of MAPLE syrup?

      Reply
      • Sarah Olson says

        April 23, 2022 at 8:39 am

        Yes, that works just fine!

        Reply
    2. Angie says

      March 20, 2022 at 8:53 pm

      Do you you pure maple syrup or is the cheap stuff okay to use?

      Reply
      • Sarah Olson says

        March 21, 2022 at 9:21 am

        I use the cheap stuff!

        Reply
    3. Linda Lalima says

      March 19, 2022 at 1:23 pm

      5 stars
      Making right now under 2 lbs
      Fried cabbage and in toaster oven
      Carrots potatoes onion with Panko crumbs. Asiago cheese. All looks good

      Reply
    4. Cheryl says

      March 19, 2022 at 4:13 am

      I am cooking two little over 6 ibs do I still cook it for 7 hrs>. Cook this last year it is amazing but wasnt enough so decided to double the receipe

      Reply
      • Sarah Olson says

        March 19, 2022 at 8:03 am

        I would do 8 hours on low if it was me.

        Reply
    5. Anonymous says

      March 17, 2022 at 4:14 pm

      5 stars
      This was the best corned beef dinner I have ever made. Absolutely delicious!

      Reply
    6. Barbara says

      March 17, 2022 at 3:14 pm

      5 stars
      This was the best corned beef I have ever made. I thought last year’s baked corned beef was good and easy, well my family has a new favorite
      That was Maple mustard corned beef. It was so easy and tasty beyond belief. The biggest problem was making sure nobody opened the crockpot before the required 7 hours. I made it with the Irish Colcannon potatoes and baby carrots with fresh parsley and butter. First time nothing left. To bad the price of corned beef is so high this year or I would go buy more and make again.

      Reply
    7. Dianne Connors says

      March 17, 2022 at 10:05 am

      Far side up or down

      Reply
      • Sarah Olson says

        March 17, 2022 at 10:17 am

        Either works. I always do down.

        Reply
    8. Kat says

      March 17, 2022 at 7:15 am

      I have a 1.5 lb corned beef. Is it still 7 hours om high?

      Reply
      • Sarah Olson says

        March 17, 2022 at 8:40 am

        Cook it on low, for 6 hours.

        Reply
    9. Karen Speidell says

      March 16, 2022 at 9:01 am

      Should we be adding water to the crockpot?

      Reply
      • Sarah Olson says

        March 16, 2022 at 9:02 am

        No, the sauce is the liquid for this recipe and the meat will make some juices too.

        Reply
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