1. Preheat oven to 175C.
2. Grease and dust an 8" round cake tin.
3. Cream together butter and sugar.
4. Add the pineapple puree and mix.
5. Add curd, essence and milk and whisk together until completely incorporated.
6. In another bowl, sieve together flour, baking powder and baking soda.
7. Add this to the pineapple butter mixture and mix gently.
8. Pour the batter into the prepared tin and bake for 40-50 minutes.
9. If the cake browns fast, place a foil on the tin. Placing the foil should be atleast 20 minutes after you place the cake in the oven.
10. When a tooth pick inserted comes out clean, remove from oven and place on counter and let it sit there for 10 minutes.
11. Now flip it onto a wire rack and allow it to cool completely.