Add the potatoes and stir to coat. Season with salt and pepper.
Cover and cook for 10 minutes.
Uncover and raise the heat to medium high. Cook for 10 more minutes, stirring occasionally.
Add garlic and rosemary and cook for 5 more minutes.
Video
Notes
The garlic and rosemary are optional. You can either omit or use more if you'd like. Russet potatoes are my favorite, but you can use whatever potatoes you have on hand.