Preheat grill to 450°F - 500°f / 232°C - 260°C.

While grill is heating up, make gremolata. Either chop ingredients by hand, or put in small food processor and blend into a sauce. Set aside.

Pat steak dry, then trim connective tissue (silver skin) if needed. Season with salt, pepper and garlic powder.

Grill for 4 - 6 minutes per side, maintaining the temp of the grill. (Keep lid closed to prevent grill from cooling down too much or adjust flame)

Remove steak from grill and place on cooling rack set inside of a baking sheet to rest for 10 minutes.

Slice across the grain into thin strips and spoon gremolata over warm steak before serving.