Prepare the patties: Divide the ground beef into 8 equal portions. Flatten each portion into thin rounds about 4–5 inches wide. Add the cheese: Place a cube of cheddar in the center of 4 patties. Top each with another patty and firmly pinch the edges together to seal the cheese inside completely. (Make sure there are no gaps — or the cheese may leak out when cooking!) Season and shape: Lightly season both sides with salt
pepper
and garlic/onion powder. Press gently to even out the shape. Cook the burgers: Grill method: Cook over medium-high heat for 4–5 minutes per side
covered
until nicely browned and the internal temperature reaches 160°F (71°C). Stovetop method: Heat a skillet or grill pan over medium-high heat. Cook burgers the same way
flipping once. Rest and assemble: Let burgers rest for 2–3 minutes to let the cheese settle. Serve on toasted buns with lettuce
tomato
pickles
and sauces of your choice. Enjoy: Take a bite and watch that molten cheddar ooze out — pure burger bliss!