How to evenly bake a daquoise disk?
A dacquoise isn't so much baked as it is dried. Usually this is done for an hour or more at a temperature below 300F. If you have problems with the top drying too quickly and leaving the bottom unset, you can get a simple spray bottle and mist the top with water toward the beginning of the baking time to slow it down. Also, I notice that the picture is using a silpat, I don't know if that was just for illustration, but while silpats are wonderful, they do tend to slow the cooking on the underside of whatever is on them.