1.Sift flour and sugar into medium bowl; gradually whisk in combined eggs and buttermilk until smooth. Add chocolate bits to batter; stir until combined.
2.Heat greased small frying pan over medium heat, pour in ¼ cup batter; cook pancake, turning once with an egg slice or spatula, until browned both sides. Remove pancake from pan to a plate and cover to keep warm. Repeat with remaining batter.
3.Meanwhile, blend or process mango and extra sugar until smooth. Place mango purée in small saucepan; stir over low heat until warmed through.
4.Serve pancakes drizzled with warm mango purée, and whipped cream, if you like.