Bring 5 tbsp of water to boil.

Add agar-agar strips in boiling water. Cook it until it dissolves in water thoroughly.

Meanwhile, add milk and bring it to boil. Add sugar and mix well until the sugar dissolves.

Add the agar-agar mix and mix well to blend them together.

Add coconut milk and cook it in low heat.

Keep the mix aside for cooling down until it is warm enough.

Pour the mix into the 1/3 of a glass or bowl. Keep this in the refrigerator for the setting.

When the top of the milk mixture is firm enough, arrange the chunks of cake slices above the milk mixture.

Pour the milk mixture above the cake chunks. Place pineapple chunks above the mixture.

Refrigerate the Pina colada for 1 hour for a cool dessert.