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Baked Corned Beef Brisket (Tender Oven Recipe)

If you’re looking for an easy way to make tender, flavorful corned beef, this Baked Corned Beef Brisket recipe is a simple and reliable option. Instead of boiling the meat on the stovetop, baking the brisket low and slow in the oven creates incredibly juicy results with rich flavor in every bite.

This recipe requires only a handful of ingredients and very little prep work. The brisket is first browned in a skillet to lock in flavor, then baked slowly with onions and garlic until it becomes fork-tender.

Baked corned beef is perfect for St. Patrick’s Day dinners, Sunday family meals, or meal prepping for the week. Serve it with classic sides like cabbage, potatoes, carrots, or even use leftovers for sandwiches and hash.

Why Bake Corned Beef Instead of Boiling It?

Many traditional recipes boil corned beef, but baking the brisket offers several advantages:

More concentrated flavor
Tender, juicy texture
Better caramelization from browning the meat first
Less chance of overcooking

Cooking the brisket slowly in the oven also allows the onions and garlic to infuse the meat with extra flavor.

Ingredients

1 corned beef brisket
1 Tbs butter or vegetable oil
1 onion, sliced
4 cloves garlic, sliced (4 tsp minced)
2 Tbs water

Instructions

1. Preheat the oven.
Preheat oven to 275°F.

2. Brown the brisket.
Heat butter or vegetable oil in a large skillet over medium-high heat. Brown the brisket 5–8 minutes per side.

3. Prepare the roasting pan.
Place the browned brisket on a rack in a roasting pan. Add 2 tablespoons of water to the pan.

4. Add aromatics.
Cover the brisket with the sliced onion and garlic.

5. Cover tightly.
Seal the roasting pan tightly with aluminum foil.

6. Bake until tender.
Bake for 1 hour 10 minutes per pound, or until fork-tender.
A 5-pound brisket will take about 5½ hours.

Tips for the Best Oven-Baked Corned Beef

Cook it low and slow
Corned beef becomes tender when cooked gently for several hours. The low oven temperature helps break down the tough connective tissue.

Don’t skip browning the meat
Searing the brisket before baking adds deep flavor and improves the final texture.

Keep the pan tightly covered
Foil traps moisture and prevents the meat from drying out.

Let the brisket rest before slicing
Allow the meat to rest for about 10–15 minutes before slicing to keep it juicy.

How to Slice Corned Beef

For the most tender results, always slice corned beef against the grain. Cutting across the grain shortens the muscle fibers and makes the meat easier to chew.

Use a sharp knife and slice the brisket into thin slices.

What to Serve With Corned Beef

This baked corned beef brisket pairs well with classic comfort-food sides such as:

Roasted or mashed potatoes
Smashed Red Potatoes
Baked Cabbage Steaks
Glazed carrots
Easy White Soda Bread.
Colcannon (Irish mashed potatoes with cabbage)

Leftover corned beef is also great for Reuben sandwiches, corned beef hash, or wraps.

Storing Leftovers

Refrigerator:
Store leftover corned beef in an airtight container for 3–4 days.

Freezer:
Corned beef can be frozen for up to 3 months. Slice it first for easy reheating.

Reheating:
Warm slices gently in a skillet with a little broth or water to prevent drying out.

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