This hearty and satisfying one-dish meal for pork and potatoes cooks in your crockpot while you are out and about. The aroma that will greet you at the door is simply sublime. You can use a bone-in pork roast for this recipe, but the cooking time should be increased by an hour or two. Cook the pork to a minimum temperature of 145 f; that is the safe temperature established by the u. S. Department of agriculture. You could brown the pork before you add it to the crockpot for more color and flavor. Just heat some oil in a pan and add the pork. Brown on all sides, turning when the meat releases from the pan. This whole process should take about 10 minutes. Then spread the pork with the mustard mixture and continue with the recipe.