Roasted potatoes: how the butter-parmesan combination and high-temperature cooking guarantee perfect crispness

Ultra-crispy roasted potatoes rely on a precise technique: melted butter, freshly grated parmesan, and high-temperature cooking. But why do some recipes fail to achieve that perfect texture on the outside while remaining tender on the inside? The answer lies in a few essential details that cooks often overlook.

Six to eight medium yellow-fleshed potatoes…