Nash, Texas. Nash is a city in Bowie County, Texas, United States, and a suburb of Texarkana. It is part of the Texarkana, Texas - Texarkana, Arkansas Metropolitan Statistical Area. The population was 2,960 at the 2010 census, up from 2,169 at the 2000 census.
Preheat the oven to 350 degrees Fahrenheit. Put the marinade and pork roast in the roasting pan, and discard the plastic bag. Roast until the temperature in the center of the roast is 155 degrees, testing with an instant-read thermometer.Start checking the temperature half an hour after you put the roast in the oven.reheat the oven to 325 degrees Fahrenheit. Place the picnic shoulder roast on a rack in the roasting pan, fat side up. Make shallow cuts in the rind and fat. Rub the cuts with salt.
Put the roast directly onto the oven rack once the oven has finished heating. Place a tray beneath the roast to catch the drippings. The fat side of the roast must face upward so that the flavor of the meat drips down as the roast is cooking. Let the roast cook for 20 minutes or until browned. Lower the heat of the oven to 200 degrees (conventional ovens would use 225 degrees). Cook for an hour and a half, then check the temperature of the middle of the roast. It should be at 135 to 140 degrees.