It's popular for a reason - it's the best thing you will ever make! The original and the most pinned recipe on the blog: Crash Hot Sweet Potatoes on the The Creekside Cook [for the vegan version, sub in coconut oil!]
Australian Crash Hot Potatoes - boil red potatoes to fork tender. Oven 450º. Add potatoes to olive oiled up baking sheet. Smash with masher both directions (like cookie). Sprinkle salt, pepper, rosemary, parmesan. Bake 20 minutes until brown and crispy.