1. Peel potatoes (you can leave some or all the skins on if you want to)
2. Slice the potatoes and boil them for about 20 minutes
3. Drain the potatoes and put them in a large mixing bowl.
4. Add 1/2 to 1 stick of butter and some milk (start with about 1/4 cup and add more as needed)
5. Sprinkle some garlic powder, salt, and pepper on the potatoes
6. Mix together with an electric mixer or mash with a potato masher