Preparation Combine cranberries, maple syrup, brown sugar, cranberry juice, and lemon peel in heavy medium saucepan. Bring to boil over medium-high heat, stirring until sugar dissolves. Reduce heat to low and simmer until most berries pop and juices thicken slightly, 4 to 5 minutes. Transfer to small bowl. Chill until cold, about 2 hours. DO AHEAD: Can be made 3 days ahead. Cover and keep chilled.
Preparation Combine cranberries, maple syrup, brown sugar, cranberry juice, and lemon peel in heavy medium saucepan. Bring to boil over medium-high heat, stirring until sugar dissolves. Reduce heat to low and simmer until most berries pop and juices thicken slightly, 4 to 5 minutes. Transfer to small bowl. Chill until cold, about 2 hours. DO AHEAD: Can be made 3 days ahead. Cover and keep chilled.