INSTRUCTIONS:

1st Step

Combine the breadcrumbs and milk in a basin. Allow a few minutes for the breadcrumbs to absorb the milk.

2nd Step

Add the ground beef, soaked breadcrumbs, diced onion, green bell pepper, minced garlic, egg, Worcestershire sauce, salt, and black pepper to a large mixing basin.

3rd Step

Mix all the ingredients gently until thoroughly combined. Be cautious not to overwork the mixture, as this can result in stiff patties. The mixture should be divided into four equal portions and formed into ovoid or round patties approximately 1/2 to 3/4 inches thick.

4th Step

Add some oil to a large skillet that has been heated over medium-high heat and oil. Once the pan is heated, gingerly position the hamburger fillets inside. Cook for approximately four to five minutes per side, or until browned and cooked to the desired degree of doneness. Take the patties out of the pan and set them aside.

5th Step

In the same skillet, melt the butter over a medium heat setting. Add the thinly sliced onions and sauté, stirring frequently, for 10 to 15 minutes, or until they are tender and golden brown.

6th Step

Toss the flour with the caramelized shallots and mix thoroughly. Cook for an additional 2 to 3 minutes to eliminate the flavor of uncooked flour. Slowly add the beef bouillon and Worcestershire sauce while continuously whisking to prevent clots. The mixture should be simmering.