For best texture, avoid overcrowding the skillet so the asparagus sautés instead of steaming. If your skillet is small, cook the asparagus in two batches, dividing the garlic and fat as needed. Very thin asparagus may cook in as little as 3 to 4 minutes, while thicker spears can take closer to 7 to 8 minutes; adjust the timing so they stay crisp-tender rather than soft. This dish is best served fresh but can be stored in an airtight container in the refrigerator for up to 3 days and reheated gently in a skillet over medium heat.