Cut the potatoes in slices without going all the way down. As you can see in the video I put chopsticks on either side of the potato I was cutting so it doesn't let me go all the way down. It just makes it easier.
Mex the garlic, parmesan cheese, oliva oil, rosemary leaves, salt and pepper.
Open up the potatoes a bit and cover with the mix.
The potatoes go onto an oven tray with baking paper to a preheated oven at 180C for 30-40min or until golden and soft inside.
Serve hot and with extra fresh rosemary as a garnish.