Start by chopping all of the veggies. Chop the onion into 1/2 inch pieces, slice the garlic, cube the potatoes and carrots into 1 inch pieces. Set aside for now.

Take the beef chuck and slice it into 1 1/2 inch cubes. Optionally, you can trim the fat off of the beef chuck if that is what you prefer. Set the beef aside for now.

Using your Pressure Cooker (I used my Instant Pot), on sauté mode add the oil and allow it to heat. Once heated, add the cubed beef and sprinkle with salt and pepper. Sear the beef until it is browned on all sides.

Remove the beef from the instant pot once it is browned and then add the onions and garlic and sauté until they are fragrant. Once the onions and garlic are fragrant, add the beef back in and sprinkle with flour. Mix well so the flour gets incorporated.

Next, add in the potatoes, carrots, beef broth, tomato paste, Irish stout (optional), salt and pepper. Stir all the ingredients together. Lastly, add in the fresh thyme on top on the stew, and place the lid on top. Put the pressure cooker on Meat/Stew mode for 15 minutes on high pressure.

After 15 minutes, allow the stew to ventilate, check and see if the potatoes and meat are cooked to your liking. If they are not cooked all the way through, cook for an additional 5 minutes until the stew reaches your desired doneness. Also, make sure to check the flavour for salt and pepper and adjust to your liking.

Remove the fresh thyme from on top before serving. Serve this Irish stew with parsley on top and enjoy! :)