Fresh ginger adds intrigue to these sweet-and-savory caramelized onions. They're the ideal garnish for Martha's Beef Biryani.
Heat oil in a medium skillet over medium-high. Add onions and cook, stirring occasionally, until onions begin to brown on the edges and soften, about 5 minutes.
Reduce heat to low and add ginger to skillet. Continue cooking until onions are very soft and caramelized, 5 to 6 minutes more.
Remove from heat and season with salt.