Slow Cooker Irish Pot Roast

Slow Cooker Irish Pot Roast

Slow Cooker Irish Pot Roast with Guinness Beer is tender comfort food at it’s best!

After hours in the crockpot, this roast will be falling apart tender with a rich Guinness gravy and savory vegetables. Preparing this roast in a slow cooker makes it easy to make a great dinner any night of the week. Just a few easy steps will ensure maximum flavor.

Step by Step for making Slow Cooker Pot Roast:

1. Brown the pot roast before slow cooking

Browning meat before cooking is an important first step. This is true of any slow cooker recipe. Searing your chuck roast first gives it a nice crusty brown caramelized surface and ensures a more complex flavor overall.

Pot Roast is traditionally made with boneless chuck roast which requires a long slow cooking time to become tender. Unlike making a stew, you will cook the meat whole. You will know it’s ready when you can easily pull it apart with a fork.

When you cook in a slow cooker you can lose the amazing flavor that develops when you braise meat slowly in a hot oven. Searing the meat before slow cooking helps to recreate that flavor so don’t skip this step.

2. Vegetables for the pot roast

This is where everything becomes easy. The great thing about the slow cooker method is we “set it and forget it”. While your cuts don’t need to be perfect you should try to make sure most of the vegetables are cut into the same size pieces to guarantee even cooking.

Root vegetables and mushrooms are traditional for Guinness Irish Pot Roast but if you substitute red wine for the Irish beer this could also be called a Yankee Pot Roast.

3. Using Guinness Beer for flavoring:

Every good pot roast needs flavorful liquids to make the delicious brown gravy that helps cook the meat. Generally, you will use at least 1 cup of liquid for every two pounds of meat when slow cooking. Want more gravy? Use a bit more liquid. This recipe calls for tomato paste, Worcestershire sauce, beef stock, and of course Guinness Irish Beer.

Guinness beer is a stout beer that is roasted and takes on a deep coffee-like flavor when used for braising and cooking. While it has a very distinct flavor you can sub in any heaty stout beer. I usually buy it by the bottle in a big wine and beverage store, because that is all I need.

4. Set it and forget it in the slow cooker:

This pot roast is so easy because once you’ve seared the meat you simply add the vegetables to the crockpot, add the liquids and gently combine with the herbs. Then add the roast on top and lightly submerge. Cover and cook! Slow cookers take time to work their magic. Cook on low (170°f) for 6-7 hours and on high (280°f) for 3-4 hours.

Bowl of Guinness Irish Pot Roast
Guinness Irish Pot Roast with Vegetables

How to know when your roast is ready?

The meat is done if it is tender and able to be easily shredded with two forks. If the meat is undercooked it will be tough and chewy, and will just need more time in the slow cooker.

Serving the perfect Irish Pot Roast:

Remove the roast to a cutting board and loosely break apart pieces with two forks. Serve in large bowls and ladle vegetables and gravy over the top. Sprinkle with additional herbs if desired.

Guinness Irish Pot Roast in bowls with Irish Soda Bread
Guinness Irish Pot Roast with Irish Soda Bread

This pot roast is rich so warm bread and a refreshing salad are the ideal side dishes. Try one of these:

Suggested Drink Pairings for Irish Stew:

  • A glass of Guinness, naturally!
  • A nice glass of hearty red wine such as Cabernet Sauvignon or Merlot
Bowls of Guinness Irish Pot Roast
Guinness Irish Pot Roast

Bowl of Guinness Irish Pot Roast
Print Recipe
5 from 7 votes

Slow Cooker Irish Pot Roast Recipe

Irish Pot Roast that melts in your mouth after slow cooking with stout Guinness Irish beer. A variety of fresh vegetables and herbs are cooked alongside for a complete meal.
Prep Time30 mins
Cook Time4 hrs
Total Time4 hrs 30 mins
Course: Main Course
Cuisine: American, Irish
Servings: 8 2 cup servings
Calories: 127kcal


  • Slow Cooker or Crock Pot


  • 1 Tbsp olive oil
  • 1 3-4 lb boneless chuck roast
  • 4 tsp salt, divided
  • 3 tsp freshly ground black pepper, divided
  • 2 cups mushrooms, thickly sliced
  • 2 cups potatoes, cut into large chunks
  • 1 cup onion, roughly chopped
  • 1 cup carrots, sliced into thick rounds
  • 3 Tbsp garlic, roughly chopped in large pieces
  • 3 Tbsp Tomato paste
  • 4 tsp Worcestershire sauce
  • 2 cups Guinness Extra Stout beer
  • 2 cups beef stock
  • 2 Tbsp fresh thyme leaves
  • 2-3 sprigs fresh thyme
  • fresh thyme leaves, optional garnish


Searing the chuck roast:

  • Season chuck roast with 2 teaspoons salt and 1 tsp ground pepper on both sides.
  • In a large saute pan, heat oil over medium high heat unitl hot but not smoking.
  • Sear the beef on all sides until dark golden brown and started to get crispy.

Preparing ingredients in a slow cooker:

  • In a large slow cooker add all of the vegetables, remaining salt and pepper, tomato paste and Worcestershire sauce. Mix to coat.
  • Pour in Irish beer, beef stock, 2 tablespoons chopped thyme leaves, and thyme sprigs. Stir well to combine.
  • Place seared chuck roast on top of vegetables and submerge slightly.
  • Cover and cook on high for 3 hours or low for 7 hours.
  • Pot roast is ready when it is easy to shred.
  • Remove roast from slow cooker and loosely cut into pieces. Serve in bowls and ladle vegetables and sauce over the top. Garnish with fresh chopped thyme if desired.


This Irish Pot Roast freezes beautifully for up to 3 months.
Make our Irish Soda Bread along with this pot roast.


Calories: 127kcal | Carbohydrates: 21g | Protein: 4g | Fat: 2g | Saturated Fat: 1g | Trans Fat: 1g | Cholesterol: 1mg | Sodium: 1376mg | Potassium: 648mg | Fiber: 3g | Sugar: 4g | Vitamin A: 2960IU | Vitamin C: 24mg | Calcium: 53mg | Iron: 2mg

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