These sweet potatoes caramelize slightly in the oven, which gives them a sweet crunch as their flesh remains creamy. Lime syrup lends them addictive acid and tart notes, and fresh chives add a faint onion flavor.
Cooks' note:
Potatoes can be roasted and syrup made 1 day ahead (without tossing together). Chill separately in airtight containers. Reheat potatoes in a single roasting pan in oven, and heat syrup in a small saucepan until hot. Toss together, then toss with zest and sprinkle with chives.
