How Long To Cook Flat Cut Corned Beef?

Timing is everything when it comes to producing mouthwatering flat cut corned beef. Obtaining the ideal equilibrium between tenderness and flavor can make or break a dining experience. This article will explore how long to cook flat cut corned beef. We have you covered from selecting the meat to mastering the preparation process.


  • 3 to 4 pounds of flat-cut corned beef (with seasoning sachet if included, if present).
  • Water or beef bouillon Voluntary: Carrots, potatoes, and cabbage are examples of vegetables


Selecting The Best Flat Cut Corned Beef

Commence with quality. Choose flat cuts of corned beef with a high marbling content. The marbling guarantees flavor and tenderness. For optimal results, look for a vibrant pink hue and minimal fat content.

The Preparation Of Corned Beef

Before preparing, thoroughly rinse the corned beef to remove excess brine. This phase helps control the meat’s saltiness. After drying it with paper towels, it is available for use.

Selecting The Cooking Technique

There are numerous ways to prepare flat-cut corned beef, each with its own unique appeal. Let’s explore a few

Boiling Technique

  • Place the corned beef flat cut in a large saucepan.
  • Submerge the flesh in water.
  • Add any seasoning sachet included or your own preferred seasonings.
  • Bring the water to a boil, then turn down the heat to a low simmer.
  • The corned beef should simmer for between 2.5 and 3.5 hours. When pierced with a fork, the flesh should be tender.

Cooking Method

  • Set the oven to 165 degrees Celsius (325 degrees Fahrenheit).
  • Place the corned beef flat cut on a tray in a roasting pan.
  • Add water or bouillon to the pan to maintain the meat’s moisture level.
  • Wrap aluminum foil around the roasting pan.
  • Cook the corned beef for three to four hours. Check for tenderness by inserting a skewer into the meat.

Slow Cooker Technique

Place The Corned Beef Flat Cut In A slow cooker

  • Add any desired seasonings.
  • Pour in enough liquid to partially submerge the meat with liquid or broth.
  • Cook the corned beef in the slow cooker on low for 7 to 8 hours, or until tender.

Calculating Cooking Times

The cooking duration varies based on the chosen method. Let’s disassemble it:

Calculating Oven Cooking Time

The rule of thumb is 50 minutes per pound at 275 degrees Fahrenheit (135 degrees Celsius). Adjust as necessary to achieve the intended level of doneness.

Simmering To Perfection For Tenderness

A 3-pound portion simmers for approximately 2.5 to 3 hours on the stovetop. The flesh must be knife-tender.

The Slow Cooker Methodology

Set the temperature on your slow cooker to low and simmer for 8 to 10 hours. This technique is ideal for hectic days.

Accurate The Sous Vide Cookbook

Patience is required while cooking sous vide. Cook corned beef at 135°F (57°C) for 10 to 12 hours for best results.

Checking For Doneness

Using a meat thermometer, check that the internal temperature of your corned beef is 145°F (63°C) before serving.

Serving And Appreciating Corned Beef

After the corned beef has been cooked to perfection, allow it to settle for a few minutes before slicing. Serve it with traditional sides such as cabbage, potatoes, and mustard.


Corned beef with a flat cut offers several advantages, making it a popular ingredient in many recipes. Here are a few benefits of flat-cut corned beef:

  • Leaner Cut: Corned beef with a flat cut is typically leaner than corned beef with a point cut. It has less fat marbling, which can be beneficial if you’re trying to reduce your fat consumption.
  • Easier Slicing: The flat cut has a more uniform shape and thickness, which makes it simpler to cut into neat, uniform portions. This is particularly useful if you intend to serve the meat as segments in sandwiches or on a platter.
  • Tender Texture: Although corned beef is initially a difficult cut of meat, the slow cooking method used to prepare it breaks down the tough fibers, resulting in a tender and more flavorful texture.
  • Versatility: Flat-cut corned beef is versatile and can be utilized in a variety of dishes. It can be sliced and served as a primary dish, incorporated into sandwiches, salads, casseroles, and hash, and used in sandwiches.
  • Flavor Absorption: The flat cut has a larger surface area than other cuts, allowing it to absorb marinades, seasonings, and culinary liquids more effectively. This may result in a more flavorful final product.
  • Healthier Option: Due to its lower fat content, flat cut corned beef is a healthier option for those monitoring their fat intake. Before cooking, you can further improve its nutritional value by removing any visible fat.
  • Cooking Convenience: The flat shape of this cut makes it simpler to cook evenly, whether you’re using stovetop simmering, oven roasting, or slow cooking techniques.
  • Traditional Irish Dish: People often eat corned beef and cabbage on St. Patrick’s Day because it is an Irish-American food. People often choose the flat cut because it is easy to slice and serve with cabbage and other veggies.
  • Rich in Protein: As with all cuts of beef, flat cut corned beef is a great source of high-quality protein, which is needed for muscle growth, repair, and the body to work well.
  • Flavorful Cooking Liquid: As corned beef cooks, it releases flavorful liquids that can be used as a base for gravies, sauces, and broths to enhance the flavor of the entire dish.

Thanks for reading.

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