Quinoa with Mango and Curried Yogurt

Whisk together yogurt, lime juice, curry powder, ginger, salt, and pepper in a large bowl. Add oil in a slow stream, whisking until combined. Rinse quinoa in a bowl using 5 changes of water, rubbing grains and letting them settle before pouring off water (if quinoa does not settle, drain in a large sieve after each rinsing). Cook quinoa in a 4- to 5-quart pot ofboiling salted water 10 minutes. Drain in a large sieve and rinse under cold running water. Set sieve with quinoa over a saucepan containing 1 1/2 inches boiling water (sieve should not touch water) and steam quinoa, covered with a kitchen towel and lid, until fluffy and dry, 10 to 12 minutes. Toss quinoa with curried yogurt and remaining ingredients in a large bowl. Serve warm or at room temperature. *Available at specialty foods shops, natural foods stores, and ethnicgrocer. com (866-438-4642).