Jamaican Jerk Pork

Ingredients

• 1.3 kilogram (2lb 12 ounce) joint of rolled leg of pork

• 1 tablespoons olive oil

• 4 teaspoon Jerk Seasoning

• 2 sweet potatoes, peeled and cut into chunks

• 2 parsnips, peeled and cut into chunks

• 300 millilitre (½ pint) chicken or pork stock