A scallop is a marine bivalve mollusc of the family Pectinidae. Scallops live in all the world's oceans. This is one of the largest families of living bivalves. There are over 300 living species of scallop. Their main adaptation is the ability to swim by clapping their valves together. In this way they escape from most of their predators. They have a good reputation as a food source.
3. Place top round roast, fat side up, on rack in shallow roasting pan. Do not add water or cover roast. 4. Cook in in the oven for about 2 1/2 hours or until the internal temperature reaches 140Â°F for medium-rare or 155Â°F for medium. 5. Remove top round roast from oven and tent loosely with aluminum foil.
Once the pan is hot sear the roast on all sides for about 6-8 minutes total time. A frying pan also can be used to sear the roast. 3. Carefully remove the top round roast, set a wire rack in center of the roasting pan and place roast fat side up on the rack.. An hour before cooking, remove the top round roast from the refrigerator to bring to room temperature. 2. Preheat the oven to 250 degrees and set the rack to the lower middle position.