Post by ccs06 on Nov 12, 2008 at 7:47am. Any advice for cleaning ceramic tile with textured grooves in it? The tile also has little pit holes in it to that the dirt just gets in and sticks as well as along the grove lines. This is in a high traffic area so it is dirty nightly. I started cleaning with a scrub brush and then moved to a handled angled brush to get in the crevices better, but it takes forever and it never looks absolutely clean.
In an oven heated to 275 degrees you cook a roast for 28 minutes per pound. Therefore the estimated cooking time for a 4.8 pound roast is 134 minutes or 2.23 hours.
Place the lamb in a roasting or sheet pan with the ribs curving down, and coat the tops with the mustard mixture. Allow to stand for 1 hour at room temperature. Preheat the oven to 450 degrees F. Roast the lamb for exactly 20 minutes for rare or 25 minutes for medium-rare.Remove from the oven and cover with aluminum foil. Allow to sit for 15 minutes, then cut into individual ribs and serve. Note: Frenching refers to scraping the meat off the tips of the bones.reheat the oven to 450 degrees F. Roast the lamb for exactly 20 minutes for rare or 25 minutes for medium-rare. Remove from the oven and cover with aluminum foil. Allow to sit for 15 minutes, then cut into individual ribs and serve. Note: Frenching refers to scraping the meat off the tips of the bones.