First step, preheat oven to 160 degree C.

Take two 18 cm baking pan and baking bowl, oil it well and dust it well with flour. Coat it on all sides and tap off the excess flour. Set this aside.

Sift flour, baking powder and salt in a sifter and sieve well. set aside.

Take all the ingredients given for cake including the flour in a bowl and mix well.

Divide this between the batter. Fill the round cake pan just half way through. Now pop this in oven and bake for the round cake for 35 mins. Bake the the cake in bowl for an hour or till the cake is baked. Remove the cake from oven and let it cool completely. You can even freeze the cake for 30 mins.

Now remove the cake and cut the doom in the top to make it even. Take the cake which is baked in bowl and cut it in half.

Now use a knife to cut a small circle in the niddle of all the cake to make space to insert the barbie.

Now make sugar water by mixing everything. Take a plate and place a round cake on that. Place strips of parchment surrounding the cake. Brush the cake generously with sugar water. Now spread butter cream on top and place another cake on top, brush with sugar water, spread buttercream on top. Now take the bowl cake half and top with sugar water, place it on top of the frosting and spread some more buttercream, place the final half and brush it with sugar water.

Finally cover the whole cake with buttercream. Chill the cake for couple of hours.

Now pipe the cake with butter cream, insert barbie and decorate it as shown in pics.