Slow Cooker Maple Mustard Corned Beef
Slow Cooker Maple Mustard Corned Beef is a delightful dish that’s full of flavor, with the succulent corned beef absorbing the sweet and tangy notes of maple syrup and mustard. When you slowly cook this meal, it transforms into tender slices that your fork glides through effortlessly — no need for a knife! The hearty aroma wafts through your kitchen, tempting everyone with hints of savory goodness long before it’s ready to serve.
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I’ll never forget the first time I made this recipe; it was cold outside, and the warmth of the slow cooker filled my home with a comforting scent. This dish not only satisfied our hunger but also brought us together around the table, filled with laughter and stories. The combination of maple and mustard creates an unparalleled flavor profile that elevates corned beef from just another dinner to a special occasion.
Why You’ll Love This Recipe
- Simple & Quick: Just 20 minutes of prep before the slow cooker takes over for 7 hours.
- Irresistible Flavor: Sweet maple and tangy mustard meld beautifully, creating a mouthwatering dish.
- Eye-Catching Appeal: The rich color and gloss of the sauce make for a stunning centerpiece.
- Flexible Serving: Perfect for family dinners, holiday gatherings, or even meal prep.
- Diet-Friendly Options: Naturally gluten-free; a great option for various dietary needs.

Ingredients You’ll Need
- 3 lb. flat cut corned beef roast: Choosing the flat cut ensures a leaner, yet flavorful meal. Avoid spice packets for a fresher taste.
- 2 tsp. cooking oil: Use a neutral oil like canola or vegetable to prevent overpowering the dish. This helps in browning the meat well.
- ½ cup maple syrup: Go for pure maple syrup for its rich flavor. Avoid imitation syrup as it lacks depth.
- ¼ cup yellow mustard: The tanginess balances the sweetness of the maple syrup, enhancing the overall flavor.
- ¼ tsp. black pepper: A dash of black pepper adds a subtle heat that complements the other ingredients nicely.
- 2 garlic cloves, minced: Fresh garlic infuses the dish with aromatic goodness, lifting the flavors to new heights.
How to Make Slow Cooker Maple Mustard Corned Beef
Rinse and Dry: Begin by rinsing the 3 lb. flat cut corned beef roast under cold water to remove any excess brine. Then, pat it dry with paper towels to ensure a good sear later.
Brown the Meat: Heat a large skillet over medium-high heat, adding 2 tsp. cooking oil to coat the bottom of the pan. Once hot, place the corned beef in and brown it on all sides. This step creates a nice crust that adds depth to the flavor.
Transfer to Slow Cooker: Carefully lift the browned corned beef and place it into the slow cooker. Be gentle to keep the juices inside the meat.
Mix Sauce: In a small bowl, whisk together ½ cup maple syrup, ¼ cup yellow mustard, ¼ tsp. black pepper, and the 2 minced garlic cloves. This sweet and tangy sauce is the star of the show, so mix it well.
Pour Sauce Over Beef: Pour the flavorful sauce evenly over the corned beef in the slow cooker. Seeing the sauce drip down the sides is a good sign of deliciousness to come!
Cook Low and Slow: Cover the slow cooker with its lid and set it to cook on LOW for 7 hours. Trust the process — don’t sneak a peek! The long cooking time lets the flavors meld beautifully.
Serve: Once the cooking time is up, your kitchen will be filled with a heavenly aroma. Serve the tender corned beef with your choice of sides; mashed red potatoes, steamed carrots, and cabbage are just perfect!

Storing & Reheating
To store your leftovers, allow the corned beef to cool before placing it in an airtight container. It can be kept in the fridge for up to 4 days. For longer storage, you can freeze the corned beef for up to 3 months; just ensure it’s wrapped tightly. When you’re ready to eat it again, thaw overnight in the refrigerator and reheat in a slow cooker on low or in the microwave until warmed through, around 2-3 minutes. Note that the texture may change slightly, so a splash of water or sauce can help refresh it.
Chef’s Helpful Tips
- Searing the meat not only adds flavor but also locks in the juices, ensuring tender results.
- For a kick, consider adding a pinch of red pepper flakes to the sauce for some heat.
- Timing is key: resist the urge to lift the lid while cooking; it lets heat escape and can extend the cooking time.
- If you have leftovers, try adding them to a sandwich or make a corned beef hash for breakfast.
Slow Cooker Maple Mustard Corned Beef is more than just a recipe; it’s an invitation to gather with friends and family around the table. The combination of sweet and tangy flavors melds perfectly with tender corned beef, creating a comfort food that warms your heart. Each bite bursts with goodness, while the slow cooker does all the hard work for you.
Whether you’re looking to impress at a dinner party or simply enjoy a cozy night in, I encourage you to give this dish a try. It’s easy to prepare, affordable, and above all, incredibly satisfying. Enjoy every moment of this delicious creation!
Recipe FAQs
Can I use a different cut of beef?
Absolutely! While the flat cut is best for this recipe, you can also use point cut corned beef, which has more marbling and will become equally tender. Just adjust the cooking time slightly if necessary.
Is there a way to make this recipe spicier?
If you’re looking to add a bit of a kick, try incorporating a teaspoon of prepared horseradish into the sauce. It’ll give your Slow Cooker Maple Mustard Corned Beef a delightful twist!
How can I serve this dish besides the usual sides?
Get creative! This corned beef is fantastic in sandwiches or wraps. You can also chop it up and toss it in a salad or stir it into scrambled eggs for a hearty breakfast.
What can I do with leftovers?
Leftover corned beef can be used in so many ways. It makes an excellent addition to omelets, a filling for tacos, or even a hearty soup. Just be sure to store it properly to maintain its flavor and texture!
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📖 Recipe Card

Slow Cooker Maple Mustard Corned Beef
- Prep Time: 20 minutes
- Cook Time: 440 minutes
- Total Time: 7 hours 40 minutes
- Yield: 8 1x
- Category: 101|Main Dishes
- Method: Slow Cooker
- Cuisine: American
Description
This Slow Cooker Maple Mustard Corned Beef is a delightful dish featuring tender corned beef infused with a sweet and tangy sauce. It’s easy to prepare and perfect for a comforting meal at home.
Ingredients
- 3 lb. flat cut corned beef roast, ditch the spice packet
- 2 tsp. cooking oil
- ½ cup maple syrup
- ¼ cup yellow mustard
- ¼ tsp. black pepper
- 2 garlic cloves, minced
Instructions
- Rinse and pat the corned beef dry with a paper towel.
- Heat a large skillet over medium-high heat and add cooking oil to coat the bottom of the pan. Brown the meat on all sides when the oil is hot.
- Transfer the browned corned beef to the slow cooker.
- In a small bowl, mix together maple syrup, mustard, black pepper, and minced garlic. Pour the sauce over the corned beef in the slow cooker.
- Cover the slow cooker and cook on LOW for 7 hours, avoiding opening the lid during cooking.
- Serve the corned beef with your choice of sides, such as mashed red potatoes, steamed carrots, and cabbage.
Notes
Make sure to discard the spice packet that comes with the corned beef for a better flavor profile.
For added depth, consider serving with freshly chopped herbs as a garnish.
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 14g
- Sodium: 1200mg
- Fat: 16g
- Saturated Fat: 5g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 19g
- Fiber: 0g
- Protein: 23g
- Cholesterol: 90mg
