Pulse the pineapple pieces along with pineapple jam.
Add a tbsp milk if required to get a smooth paste.
In a bowl, take the flour, add condensed milk. Next, add the pineapple puree. Blend well with a spatula.
Add pineapple essence. Finally, add the baking soda and a pinch of baking powder.
Prepare a loaf tin, lined with parchment paper. Pour the cake batter into it. Pat well.
Pre-heat the oven at 170 C. Then, bake the cake for 40 mins.
Cover the last 5 mins with foil and make it for another 5 mins.
Let it sit for a while before slicing and serving.