This Instant Pot Corned Beef is so tender and flavorful, thanks to a zesty mustard glaze that adds a delightful twist. It cooks quickly and is perfect for a hearty meal!
I love how easy it is to make in the Instant Pot. You just set it, relax, and before you know it, dinner is served! Pair it with some veggies, and you’re all set! 😋
Key Ingredients & Substitutions
Corned Beef Brisket: This is the star of the dish! Look for a 3 to 4 lb brisket with a spice packet for added flavor. If you can’t find corned beef, a brisket can be brined at home, or you might try a pork roast for a different taste.
Beef Broth or Water: Using beef broth enhances the meaty flavor. If you’re out of broth, water works just fine! You can add a bouillon cube or two for an extra flavor boost.
Fresh Thyme: While thyme adds wonderful aroma, it’s optional. If you don’t have fresh thyme, dried thyme can be a good substitute. Just use about one teaspoon instead. The veggies will still taste great!
Mustard: The mix of Dijon and whole grain mustard gives depth. If you prefer milder flavors, use just Dijon. For a spicier kick, add some hot English mustard or even horseradish.
How Do I Ensure My Corned Beef Is Tender?
Cooking in the Instant Pot is a fantastic way to achieve tender corned beef. The key is to allow for both a proper pressure cook and a natural release.
- After the 90-minute cook time, let the pressure release naturally for about 15 minutes. This helps the meat stay juicy.
- Don’t rush the quick release! Ensure it’s fully released before opening the lid. This can help maintain the tenderness.
Also, slicing against the grain is crucial to ensure each bite is tender. Enjoy your cooking adventure!

How to Make Instant Pot Corned Beef With Mustard Glaze
Ingredients You’ll Need:
For the Corned Beef:
- 3 to 4 lb corned beef brisket (with spice packet)
- 4 cups beef broth or water
- 1 large onion, quartered
- 3 cloves garlic, smashed
- 4 sprigs fresh thyme (optional)
- 2 bay leaves
- 1 lb baby potatoes (red and Yukon gold)
- 4 large carrots, peeled and cut into chunks
For the Mustard Glaze:
- 3 tbsp Dijon mustard
- 1 tbsp whole grain mustard
- 2 tbsp brown sugar
- 1 tbsp apple cider vinegar or lemon juice
- 1/2 tsp black pepper
How Much Time Will You Need?
This delicious Instant Pot Corned Beef takes about 20 minutes of prep time and a total of 2 hours to prepare, including cooking and resting time. You’ll be rewarded with a tender, flavorful meal that’s perfect for any occasion!
Step-by-Step Instructions:
1. Prepare the Instant Pot:
Start by placing the trivet inside your Instant Pot. Pour in the beef broth or water so that there’s plenty of moisture for cooking.
2. Add Aromatics and Corned Beef:
Now, add the quartered onion, smashed garlic, thyme sprigs, bay leaves, and the spice packet from the corned beef directly into the liquid. Next, place the corned beef brisket on top of the trivet, ensuring the fat side is facing up. This will keep the meat juicy as it cooks.
3. Pressure Cook:
Seal the lid of your Instant Pot and set it to Manual/Pressure Cook on high pressure for 90 minutes. This timing is perfect for a 3 to 4 lb brisket to become tender.
4. Natural Release:
When the cooking time is complete, let the pressure naturally release for about 15 minutes. After that, carefully perform a quick release for any remaining pressure.
5. Add Vegetables:
Remove the corned beef brisket and place it on a plate, covering it with foil to keep it warm. Now, add the baby potatoes and carrot chunks to the pot. Secure the lid again and cook on high pressure for an additional 5 minutes.
6. Quick Release & Remove Veggies:
Once the cooking time is up, do a quick release for the pressure. Use tongs or a slotted spoon to carefully transfer the potatoes and carrots to your serving plate.
7. Make the Mustard Glaze:
While your veggies are cooking, grab a bowl and mix together the Dijon mustard, whole grain mustard, brown sugar, apple cider vinegar (or lemon juice), and black pepper until smooth and well combined.
8. Glaze the Corned Beef:
Preheat your broiler or oven to high. Place the corned beef on a baking sheet and generously brush it with the mustard glaze. Make sure to cover it well for great flavor!
9. Broil:
Slide the glazed corned beef under the broiler for about 5 minutes, or until the glaze is bubbly and slightly caramelized. Keep an eye on it to prevent burning!
10. Slice and Serve:
Once done, let the corned beef rest for 5 minutes before slicing it thinly against the grain. Serve it alongside the cooked potatoes and carrots, drizzling any remaining mustard glaze over the top for that extra zing!
Enjoy your tender, flavorful Instant Pot Corned Beef with a tangy mustard glaze!
Can I Use Different Cuts of Meat?
Yes! While corned beef brisket is ideal for this recipe, you can use other cuts like a flat cut or a round roast. Just be mindful of the cooking time, as these cuts may vary in tenderness.
What If I Don’t Have Beef Broth?
No worries! You can substitute beef broth with water; just keep in mind that the flavor may be slightly less rich. Adding a couple of bouillon cubes can also enhance the taste.
Can I Store Leftovers?
Absolutely! Store any leftovers in an airtight container in the refrigerator for up to 3 days. For longer storage, you can freeze individual portions for up to 3 months.
How Do I Reheat Corned Beef?
You can reheat corned beef in the microwave, on the stovetop, or in the oven. If using the oven, cover it with foil and heat at 325°F until warmed through. Adding a splash of broth can help keep it moist!



