Chipotle Deviled Eggs

Place eggs in a single layer in a saucepan and add enough water to cover eggs with 2" inches of water. Bring to a boil, then reduce heat to low and cook, covered, 1 minute. Remove from heat and let sit, covered, 14 minutes, then rinse under cold water. Crack shells and carefully peel under cool running water. Halve eggs lengthwise. Spoon out yolks into a small bowl and place whites on a serving platter. Using a fork, mash yolks. Stir in mayonnaise, lemon juice, mustard, and chipotle in adobo sauce and season with salt. Spoon mixture evenly among egg whites and garnish with chili powder and scallions.