Preheat the oven to 180c.
Grease a cake tin with butter and flour it.
Beat the egg in a mixing bowl.
Add the sugar and oil and mix well.
Add the milk and mix.
Add the mango puree.
Combine the flour,salt and baking powder and whisk it a bit.
Now add the flour mixture slowly into the wet mixture stirring it in between till the whole flour mixture is combined with the wet mixture.
Add the vanilla essence and mix.
Pour the batter in the prepared cake tin.
Bake the cake at 180c for 35 -40 minutes. Insert a skewer in the center of the cake to check if it is done.
Allow it to cool before slicing.
You can add cardamom powder instead of vanilla essence.