1
Wash and dry produce.
Halve, peel, and dice onion. Trim and thinly slice scallions, separating whites from greens.
Heat a large drizzle of oil in a 5- to 6-quart heavy-bottomed pot over medium-high heat. Add onion, scallion whites, and garlic powder. Cook, stirring occasionally, until softened, 5-7 minutes.