Why Roasting Produces the Best Mashed Sweet Potatoes

After several rounds of tests, we found that roasting (not steaming or simmering) is the best way to unlock sweet potatoes' natural sweetness, making for the best mashed sweet potatoes.

Roasting works because the extended dry heat evaporates moisture from the potatoes, naturally concentrating their sugars and intensifying sweetness without adding extra ingredients. The exterior caramelization also develops complex flavors that permeate the entire dish, even after the skins are removed.

We tested against a time-intensive low-temperature method that promises enzyme-activated sweetness. While that approach showed promise in theory, we found conventional roasting delivered comparable sweetness and superior flavor in far less time.

The winning formula is 375°F for 50-60 minutes, mashed by hand for the ideal creamy-yet-rustic consistency.