adapted from Good Meat, Debra Krasner
1 pound ground grass-fed and finished beef
Sea salt and freshly-ground black pepper
Approximately ¼ pound blue cheese, such as Gorgonzola, Stilton, or Maytag (also, try substituting your other favorite sharp-flavored cheeses like cheddar, Asiago, etc.), made from grass-fed milk.
Combine meat with salt and pepper. Form into four balls, taking care not to overwork the mixture. Poke a hole in each ball, insert a small piece of the cheese, and seal the cheese inside the burger by pinching the meat back over it.
Heat a dry, seasoned, cast-iron skillet, over medium heat, until the edges of the pan are hot to a glancing touch. Immediately reduce to low heat and add the patties to the pan. Cook the patties slowly and gently until browned (about 4 minutes on each side). Better yet, fire up that grill!
Serve immediately, with rolls or atop raw or cooked greens.