Help, I made the pineapple filling from the recipe that is here on CC but it came out to runny. I followed all the instructions. I am using it as a filling for a fondant covered cake so I have to thicken it. How can I do this?

Here is the link

http://cakecentral.com/recipes/16004/totally-yummy-pineapple-filling

Can you link to the recipe or cut & paste it here? Will help everyone to know exactly what the ingredients and instructions are.

Soften a little unflavored gelatin and add it to your filling.