i made a cookie bar this weekend and the middle called for condensed milk which was too gooey after baking. i also made jam bars (simply spreading jam onto the bottom layer and baking). how do i make the middle layer of a bar cookie to be solid using 1) fruit 2) chocolate? i'd like to make both types but have the center be firm after baking.
i guess i need to thicken the jam with something and make a ganache layer but i don't have any recipes to start with.