Step 1

Preheat oven to 500°F

Step 2

Cover the potatoes with water and bring to a boil

Step 3

Salt the water and cook until just tender, drain and cool

Step 4

Halve and lightly crush the potatoes with bottom of a glass, flesh-side up, season with a little garlic, salt and pepper and spray with oil

Step 5

Transfer to oven and brown, top with cheeses, melt and brown again, top with scallions

Step 6

Serve five halves per person, 2 ½ potatoes total