Preheat your grill or skillet over medium-high heat. Season the ribeye steak generously with salt and pepper on both sides.
Add olive oil to the skillet or brush it on the grill grates. Place the steak on the grill or skillet and cook for about 4-5 minutes on each side for medium-rare, or until your desired doneness is reached. Remove the steak and let it rest for 5 minutes.
In the same skillet, reduce the heat to medium and add the minced garlic. Sauté for about 1 minute until fragrant, being careful not to burn it.
Carefully pour in the bourbon, scraping the bottom of the skillet to deglaze. Allow it to simmer for 2-3 minutes until slightly reduced.
Stir in the heavy cream, Dijon mustard, and Worcestershire sauce. Let the sauce simmer for another 3-5 minutes until it thickens slightly.
Slice the rested steak and serve it topped with the bourbon garlic cream sauce. Garnish with fresh parsley.