AIts almost time to prepare for my annual gingerbread project for christmas, this year I will replicate our own house, I was thinging, I really love the look of sugar windows, made by boiling sugar and pouring it in the window cut-outs. Last year after a few days the windows started to melt/crystalize. How can I prevent it from doing that, is there no other solutuon then using yellow candies insteds of the sugar? I really prefer the sugar window look instead of the candie ones.

Use isomalt instead of regular sugar, it won't melt out.