Place your freshly roasted halved sweet potatoes cut side down for a few minutes in a heated, heavy-bottomed skillet with butter and honey until golden brown and crispy.
Sugars caramelize when heat is applied, forming a crisp crust and depth of sweetness. The heated butter also brings a voluptuous nuttiness to the dish.
Sweet potatoes have a particular enzyme that, when heated, converts starch into a sugar known as maltose. The amount of maltose produced is controlled by time and temperature.
Cooking maltose-activated roasted sweet potatoes from your oven with butter and honey in a skillet for an increased amount of time will result in a crusty, golden-brown sweetness.