Kanom Krok sadness

This attempt to use our Ebelskiver pan for "anything else" did not go well:

http://importfood.com/recipes/kanom_krok.html

The filling never solidified despite cooking for well longer than the recommended time. We noticed after the fact that other recipes called for something to thicken the filling, while this one did not. The addition of corn starch didn't help much, however. Also, J thought they were too salty. But J wasn't very excited about making them in the first place.