Mayo isn't just for sandwiches.

Try J. Kenji López-Alt’s trick for making the best roasted potatoes on planet Earth.

Tired of basic roasted potatoes? Then try smashed potatoes. Each bite has crispy toasted skin and edges. These potatoes have little bits of seasoning and buttery flavor in each crack and crevice.

Roasting raw potatoes rarely produces the truly shattering, crisp crust most of us are chasing. Even at high heat, their starch hasn’t reorganized into the structure needed to form a rigid shell.