When sautéed over high heat, the sugars in the asparagus will caramelize to add a rich, slightly sweet flavor, but the stalk will need some extra help to cook through evenly.
After sautéeing the stalks in a pan with oil for a few minutes to crisp up the outsides, cover the pan with a lid to trap the heat, creating steam to soften the veggie.
Allow the stalks to sit untouched, save for shaking the pan intermittently, until they're tender. The result will be a browned, caramelized asparagus with a fork-tender center.