Remove the steak from the refrigerator 20 minutes before cooking to reach room temperature, then pat it very dry with paper towels.
Season both sides of the steak generously with sea salt and black pepper.
Heat a cast-iron skillet over medium-high heat until it is starting to smoke slightly.
Add half of the ghee to the pan, then carefully place the steak in the skillet, searing for 3-4 minutes until a deep golden crust forms.
Flip the steak and add the remaining ghee, smashed garlic clove, rosemary, and thyme to the pan.
Tilt the pan slightly and use a spoon to continuously baste the steak with the melting herb ghee for another 3 minutes for medium-rare.
Remove the steak from the pan and let it rest on a cutting board for at least 5-8 minutes.
While the steak rests, toss the asparagus spears into the same hot skillet and sauté for 3-4 minutes until bright green and tender.
Slice the steak against the grain and serve immediately alongside the sautéed asparagus.