1 ¼poundsskinless boneless chicken breast halves (4 to 5)
Dressing
5tablespoonsfish sauce (such as nam pla or nuoc nam)
¼cup(packed) light palm sugar or golden brown sugar
¼cupfresh lime juice
2teaspoonsminced Thai chiles or serrano chiles with seeds
2large clovesgarlic, pressed
Vegetables
3cups2-inch pieces trimmed Chinese long beans or green beans (about 10 ounces)
8ouncesplum tomatoes, halved lengthwise, seeds and pulp removed, shells cut into long thin strips
1cupcoarsely grated peeled daikon or trimmed red radishes
1cupcoarsely grated seeded Persian cucumbers (about 3)
1cupvery thinly sliced green cabbage
1cupcoarsely grated carrot
1cupcelery leaves
1cupfresh cilantro leaves
3green onions, thinly sliced on diagonal
½cupsalted roasted peanuts, split in half
Instructions
Gradually whisk in oil. Season marinade to taste with coarse salt and freshly ground black pepper.
Arrange chicken in a single layer in an 8 x 8 x 2-inch glass baking dish. Pour marinade over; turn chicken to coat evenly. Cover and chill 3 hours. Can be made 1 day ahead.
Heat heavy large skillet over medium-high heat. Add chicken (with some marinade still clinging) and sauté until cooked through, 5 to 6 minutes per side.
Turn off heat; let chicken rest 15 minutes. Transfer chicken to work surface and cut into strips.
Whisk until sugar dissolves. Season dressing with salt and pepper. May be made 3 hours ahead.
Place beans in a large bowl. Add tomatoes, daikon, cucumbers, cabbage, carrot, celery leaves, cilantro leaves, green onions, and most of the peanuts.
Add chicken and dressing; toss to blend. Season with salt and pepper.
Mound salad on platter. Sprinkle with remaining peanuts and serve.
Notes
Ingredient info: Lemongrass, fish sauce, palm sugar, and daikon can be found at some supermarkets and at Asian markets. Makrut lime leaves are sold frozen or sometimes fresh at Asian markets. If unavailable, substitute 1 tablespoon fresh lime juice and 1/2 teaspoon grated lime peel for each lime leaf.Test-kitchen tip: Palm sugar can be very hard, making it difficult to measure. To soften it, microwave the palm sugar (still in the jar) in 10-second intervals at 50 percent power.