Green Beans with Pickled-Onion Relish

Preparation

1. Step 1

   Fill large bowl with ice and cold water. Cook beans in large pot of generously salted boiling water just until crisp-tender, 5 to 6 minutes. Drain. Place beans in bowl of ice water until cool. Drain well, then pat dry with kitchen towels. DO AHEAD: Can be made 1 day ahead. Wrap beans in several layers of paper towels; enclose in large resealable plastic bag and chill. Bring to room temperature before using.

   Step 2

   Combine 2 cups water, cider vinegar, and next 6 ingredients in large saucepan. Bring to boil, stirring until sugar dissolves. Add onions; bring to boil. Reduce heat and simmer until onions are wilted, about 4 minutes. Remove from heat. Cool uncovered to room temperature. DO AHEAD: Can be made 1 day ahead. Cover and chill onion mixture. Before using, drain liquid; discard thyme, cloves, and bay leaf and bring to room temperature.

   Step 3

   Whisk oil, syrup, and chopped thyme in large bowl. Season with salt and pepper. Add green beans and drained onions; toss to coat. Transfer salad to platter and serve.