1. Combine
butter, pepper both red and black and garlic, knead till mixed
thouroughly, refrigerate.
2. Meanwhile
lightly shape ground beef into four 8 ounce 1-inch thick patties.
Make a small hole in the top of each patty and place 1 ounce of
the butter mix in the hole cover with the burger you removed to
make the hole.
3. On the
grill place the burgers over very low heat for approximately 25-30
minutes butter side up, do not turn, in the oven place on the
middle rack and broil for approximately 20 minutes, check often
to avoid over cooking. Watch the burgers until juices run clear,
do not turn for optimum flavor.