Chimichurri Sauce:
Stir all ingredients together in a bowl.
Leave at room temperature for two hours to allow flavors to meld.
Surf and Turf:
If using wooden skewers, soak them in water for 1 hour to prevent burning.
Preheat grill to medium-high heat (about 425°F).
Cut beef into 1″ cubes and thread steak and shrimp onto skewers.
Brush oil onto skewers and then lightly season with salt and pepper.
Grill for 8-10 minutes, turning every four minutes, until shrimp is done and steak reaches desired doneness.
Remove from heat, drizzle with chimichurri sauce, and serve.
