yu choy sum

Pronunciation: [yoo choy SUM]

A relative of bok choy, this vegetable has long, graceful yellow-green stems with dark green leaves and, sometimes, tiny yellow or purple flowers. It has a tangy flavor akin to spinach and is wonderful steamed or stir-fried (see stir-fry) or added to soups. Yu choy sum is available in Asian markets. Choose unblemished bunches with firm stalks and brightly colored leaves. Refrigerate in a plastic bag for up to 1 week and wash well before using. See also choy sum.

From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.

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One cup of raw bok choy has only 9 calories, but includes 63% of your daily vitamin A and more than 50% of your vitamin C needs. It also has calcium and iron -- talk about a nutrient-rich leafy green!

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