In a clean mixing bowl, add in the milk, sugar, vanilla, eggs and whisk well.
Add in the flour and melted butter and mix well till combined.
In a clean pan over medium heat, add in a cube of butter then pour 1/3 cup of the crepe batter and spread it well all over the pan and let it cook on the first side for 1-2 mins. Then flip it on the other side and let it cook for another 1 minute. Set aside and repeat the same steps till the batter is finished.
In another bowl, add in the cold whipping cream and sugar. Mix it very well with the electric mixer until it is stiff. Transfer into a piping bag.
Take three pieces of crepe and place them on the baking mat.
Spread a layer of the whipping cream and top with the cubed mangoes.
Fold in the edges and roll it very carefully into a crepe roll.
Let it sit in the fridge for at least 30 minutes then slice it up and serve!