Roast pork in my way

Ingredient: 1 roast farm pork taken from the grower. .., 2 onions, fresh mushrooms slices, water, herbs provences, salt, pepper, roast juice, olive oil tenderloin, put all in a baking dish. Preheat oven to 180 °. Bake everything until your roast is brown and think of watering it from time to time. At the end of cooking, remove the roast slicing, in the saucepan add 1/2 brick of cream, mix well and reduce a little sauce. Add to meat and serve with french fries, potatoes or other ...