Season the pork cubes with pepper and salt.
Brown them nicely all around so you have a nice crust, fill your pot in several batches so you can do this with each piece. Throwing all the meat in your pot at once is not a good idea.
Meanwhile, finely chop the onion.
Remove all pieces of meat from your pot and sauté the onions in the remaining fat, then add the meat back in and sprinkle the flour over it.
Stir well until all the flour is mixed in.
Deglaze with the beer and add all the other ingredients, let it simmer for 45 minutes covered.
Meanwhile, peel and slice the carrots, cook them for 4 minutes in salted water.
Drain and add to the meat after 45 minutes of simmering.
Let everything simmer together for another 20 minutes. Remove the lid if your sauce has not thickened yet. Finish with flat parsley.
Serve with steamed potatoes, fries, or croquettes and extra mustard.