We combine something else with this cookie, without
marshmallows. It turned out a cookie of two halves
with a filling. Excess marshmallows can be cut
with scissors when it hardens. Melt the chocolate
couverture buttons in the microwave
in several steps, so that it does not boil.
About 7 seconds at a time, and each
time the chocolate needs to be mixed well.
You can make it easier by using a water bath.