Wash potatoes and then place in a saucepan. No peeling or cutting necessary.
Add water to cover the potatoes then add a pinch of salt.
Place on a high heat and cook until potatoes are fork tender.
Drain potatoes then place on a chopping board and smash with a potato masher. Just once will do.
Place potatoes on a parchment paper lined baking tray.
Add garlic cloves in between the potatoes, wherever you like.
Give a generous drizzle of olive oil over the potatoes and garlic then place in a preheated oven at 450.
After 10-15 remove the potatoes, the garlic should've roasted to a soft texture..
Remove garlic cloves and let them cool for a couple of minutes, then grate them over the potatoes. You might have to remove the garlic from the inside of the grater and scatter over the potatoes a couple of times.
Return potatoes to the oven for a further 15-20 mins.
Once the edges of the potatoes begin to crisp remove from the oven and transfer to a serving plate.
Sprinkle feta over potatoes and serve immediately.