Preheat your Oklahoma Joe’s Blackjack Kettle Grill to a medium high heat (around 375F) using a three zone cooking method.
As the grill heats, cube your sirloin steaks into 1.5” cubes and season with oil, salt and pepper. Divide evenly into two, then skewer onto your large skewers. Set aside until the grill is ready to go.
Once the grill is ready, first add a basting skillet with the beef tallow. Let melt until clean, then add the minced garlic and habanero sauce. Let the garlic fry in the beef tallow for 1-2 minutes, then pull the skillet off the heat and let cool.
Add your beef skewers to the grill in between the two heat sources. Close the lid and let cook for about 7-8 minutes. Flip the skewers over once they are nicely charred and cook for another 6-7 minutes or until the meat is 120F internal.
As the steaks finish cooking, make your herb brush by tying together the rosemary and thyme sprigs with trussing string. Add the chopped parsley to the beef tallow and mix together thoroughly. During the last 5 minutes of cooking, begin basting the beef with the herb brush and beef tallow. Once all the tallow is gone, add the basting brush to the coals and close the lid to let the herbal essence get onto the meat. When the meat is done cooking, pull it off and let it rest for 5 minutes.
Pull the steaks off the skewers, slice, serve and enjoy!