These are super fluffy and work great with flank steak.
4 large russet potatoes, peeled and diced
5 garlic cloves, minced
1 cup milk
6 Tablespoons butter
Salt & Pepper to taste
Place potatoes and garlic in a large pot and cover with cold water. Bring to a boil and cook until tender, about 10 minutes. Check the potatoes with a fork to ensure they are tender. Drain. Place butter and milk in a saucepan over low heat until butter melts. Mash the potatoes and add the milk and butter mixture, along with salt and pepper.