1. Shape the Hamburger Patties:

• Gently shape the 1 pound of ground beef into three equal-sized patties, about 3/4 to 1 inch thick. Handle the meat as little as possible to keep the burgers tender – don’t overwork or pack them too tightly.
• Create a slight indentation or “dimple” in the center of each patty with your thumb. This helps prevent them from plumping up into a football shape during grilling and promotes even cooking.
• Place the formed patties in a single layer in a shallow dish suitable for marinating.

2. Prepare and Apply the Marinade:

• In a small bowl or measuring cup, combine the ½ cup of beer, ¼ cup of Worcestershire sauce, 1 teaspoon garlic powder, ½ teaspoon onion salt, and freshly ground black pepper to taste. Whisk or stir well to combine.
• Pour this marinade mixture evenly over the hamburger patties in the shallow dish.
• Cover the dish and place it in the refrigerator to marinate for 15 minutes.

3. Flip and Continue Marinating:

• After 15 minutes, carefully flip the burgers over in the marinade to ensure both sides get to soak up the flavors.
• Cover the dish again and return to the refrigerator to marinate for an additional 15 minutes (for a total of 30 minutes marinating time).

4. Preheat Grill and Cook Patties:

• While the patties finish marinating, preheat your outdoor grill for medium-high heat.
• Once hot, lightly oil the grill grate to prevent sticking.
• Carefully remove the patties from the marinade, letting any excess liquid drip off. Discard the leftover marinade.
• Place the marinated patties on the hot, oiled grill.
• Cook for about 2 minutes on the first side, then carefully flip them over using a sturdy spatula or tongs.
• Continue to cook the burgers to your desired degree of doneness. The recipe suggests about 5 minutes per side for well-done. For medium-rare to medium, it would be less time (e.g., 3-4 minutes per side after the initial 2 min flip).
• Crucial: An instant-read thermometer inserted into the center of a patty should register at least 160°F (70°C) for safely cooked ground beef.

5. Rest and Serve:

• Remove the cooked hamburgers from the grill and place them on a clean plate.
• Let the burgers rest for about 5 minutes before serving. This allows the juices to redistribute, resulting in a much juicier burger.
• Serve hot on your favorite buns with all your desired toppings!