Cut the beef into strips about 1/2 inch thick and 2
inches long. In a separate saute pan over high heat,
melt 2 tablespoons of the butter and saute the beef
strips, a few at a time, until brown. Add more butter to the
pan if necessary. As each batch of meat is cooked, sprinkle
it with salt and pepper and add it to the sauce. When all
the beef has been cooked and added to the sauce, return
the sauce to a boil. Cover and reduce the heat to a simmer.
Serve at this stage if the meat is cooked to your liking, or
continue to simmer for as long as the cut of meat and your
preferences determine. Either way, 3 minutes before serving,
stir in the sour cream. NOTE** The secret here is DO NOT
let your sour cream boil, so turn down the heat HERE and watch it.
This dish is traditionally served with
"Russian fries" (oversized French fries) but is also good
served with rice or noodles. I serve this over Noodles