Preheat oven to 350F. Line the bottom of an 8 inch non stick round cake pan with parchment paper.
In a large bowl,combine mango puree, milk and oil. Whisk for 2 minutes so that everything is combined and of mango color.
Place a large sieve(or use a flour sifter) over the bowl. Add the flour, baking powder, baking soda, salt and sugar. Sift the flour mixture over the wet ingredients.
Using a rubber spatula, fold the wet and dry ingredients together until no white specks of flour are visible. Dont over mix.
Transfer the batter to the cake pan. Using a flat spatula, smoothen the top of the cake.
Bake for 30-35 minutes until a skewer inserted in the centre of the cake comes out clean.
Once baked, remove the cake from the oven and proceed to soaking (see instructions below)