Frankfurters and potatoes

Name: Frankfurters and potatoes
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Yield: 2 servings
Cuisine: German, European
Ingredients: 4 Baking potatoes; 1 pinch of Black pepper; 1 dash of Extra virgin olive oil; 1 pinch of Fine sea salt; 10 Frankfurter; 1 sprig of Fresh rosemary