Combine marinade ingredients (except peanut butter) and bring to a simmer, cook until sugar is
dissolved. Chill marinade to 40 degrees.
Divide into two equal portions. Pour one of the portions (half the sauce) over the steaks, cover and
refrigerate 1 to 2 hours, turning steaks once or twice.
Stir peanut butter into the other half of the marinade, add a little water if it is too thick, this will be
the sauce. Heat the sauce to over 165 degrees when needed.
Remove steaks from the marinade, discard used marinade. Brush steaks with the oil and season
with salt and pepper to taste.
Grill or roast steaks as needed.
For each serving, to order: Slice 4 ounces steak across the grain. Fan steak slices on plate.
Drizzle with 1 ounce reserved sauce.