Three vegetables mash

Name: Three vegetables mash
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Yield: 2 servings
Cuisine: British
Ingredients: 300 gr of Baking potato; 1 pinch of Black pepper; 150 gr of Carrot; 1 pinch of Fine sea salt; 150 gr of Parsnip; 75 ml of Semi skimmed milk; 1 wedge of Unsalted butter