Asian street food include many egg dishes. For instance, Thai egg strips, son-in-law eggs, egg foo yong, spicy hard-boiled eggs with tomatoes and, of course, eggs are a favorite addition to the ubiquitous congee.
In the Philippines, there is another very popular egg street food — hard-boiled eggs dipped in batter tinted with annatto water and deep fried until the batter turns crisp. Egg, tempura style. Battered and fried quail eggs, often skewered in threes or fours, are called tokneneng. Battered and fried duck or chicken eggs, often sold per piece, is called kwek-kwek. Both are served with spicy vinegar.