Darkorpse 0. Not sure if we're thinking of the same waxy shine, but to me that's normally a bad sign and an indicator of heat stress. If a leaf is shiny, it is reflecting more light than necessary, and will lower the rate it can absorb light at and negatively affect it's health.
1 PREHEAT oven to 250F. Place steaks on a rack over a baking sheet. 2  Rub with 1 tbsp oil and season with salt and pepper. 3  Roast steaks in the centre of the oven for about 20 minutes for medium-rare. 4  Remove from oven.HEAT oil in a medium skillet over high heat. Add steaks and sear until deep brown and crisp, about 3 minutes a side. Hold the steak on their sides and cook the edges for 1 min per side.Remove to rack and let rest for 10 min.oast steaks in the centre of the oven for about 20 minutes for medium-rare. Remove from oven. HEAT oil in a medium skillet over high heat. Add steaks and sear until deep brown and crisp, about 3 minutes a side.
4 Use your fingertips to check for doneness or insert a meat thermometer into the thickest part of the steak - 120Â°F for very rare, 125Â°F for rare, or 130Â°F for medium rare. Flank steak should be served rare or medium rare, otherwise it may be too dry. Remove the steak from the pan to a cutting board and let rest for 10 minutes, covered with aluminum foil. 5 Cut the meat in very thin slices, at an angle, against the grain of the meat.