Prep Time 15 minutes mins
Cook Time 8 minutes mins
Resting Time 5 minutes mins
Total Time 28 minutes mins
Use very finely ground coffee so it adheres and forms a crust rather than a gritty layer; if your coffee is coarse, pulse it briefly in a grinder. Sirloin works best for tenderness and price, but ribeye or strip will be even richer; avoid very lean cuts that can dry out. Keep the grill hot and the pieces well-spaced to promote searing, and resist moving them until a crust forms. Adjust sweetness and heat by tweaking brown sugar and cayenne, and reduce salt by 25% if using table salt instead of kosher. For indoor cooking, open windows and preheat a cast-iron pan until smoking, then cook in batches; a quick butter baste off heat adds gloss and flavor. Leftovers make great steak tacos or salads—chill quickly and rewarm briefly to avoid overcooking.