Sweet and sour fish is a popular Chinese restaurant and home cooking dish. The fish is served whole, first lightly battered and deep-fried for flaky-tender meat and crispy skin, then doused in a bright, glossy, sweet, and tangy sauce for an impressive finish.
For an extra light and crispy batter, this recipe calls upon two secret ingredients: baking powder and water chestnut flour, which you can find in any Chinese supermarket. (Glutinous rice flour also works as a substitute.)
