Mango-macadamia Upside Down Cake

1.In a small bowl, combine mango and lemon juice. Line a 6-in. round baking pan with parchment paper; coat with cooking spray. Combine brown sugar and butter; spread evenly into prepared pan. Top with mango mixture; sprinkle with nuts. Set aside. 2.In a small bowl, cream butter and sugar. Add egg; mix well. Combine the flour, baking powder, ginger and salt; add to creamed mixture alternately with milk. Spoon batter over nuts. 3.Bake at 350? for 25-30 minutes or until a toothpick inserted near the center comes out clean. Cool for 5 minutes before inverting onto a serving plate; remove parchment paper. Sprinkle with candied ginger if desired. Serve warm.