A: If I am baking in humid weather or if I use cocoa or freeze dried fruit powder in the shells this can and does happen (those ingredients are amazingly sticky). (pizzarossa.me)
That said, you could equally use any freeze dried fruit powder for this dessert, and get an equally delicious result. (swoonfood.com)
In this case, it's best to look for powders sweetened naturally with fruit powders or vanilla. (yurielkaim.com)