Blue steak is all about crust. The outside needs high heat and quick contact so the surface browns while the inside stays very undercooked. That usually means a blazing-hot pan, minimal time, and flipping only when needed.
Start with a fully dried surface. Moisture is the enemy of crust; it steams instead of browning. Pat the steak dry, season simply, and preheat the pan until it’s genuinely hot. Use a high-smoke oil suitable for high heat, then sear each side briefly. The exact timing depends on thickness, pan heat, and whether the steak started cold or at refrigerator temperature.
For accuracy, use an instant-read thermometer. This is where home cooks get the most reliable results. You’ll also learn your own equipment’s quirks—some stoves run hotter, some pans retain heat differently. Without a thermometer, blue can easily drift into rare or into overcooked territory.
Resting is tricky for blue because you’re fighting time. A long rest can move the center temperature upward. Keep it short—just enough to let juices settle—then slice immediately if you want to see the interior clearly.
