I am making a stained glass display cake about 1 month earlier than I need it for. I have painted it with a mixture of vodka, corn syrup, and clear piping gel. It does have some sheen to it but I want more.
1.- Which is better for shine; PME or CK glaze?
2. If I use the glaze now will it still be shiny in a month or should I glaze it closer to the date I need it for?
3.- If it was a real cake (to be consumed) would these glazes really be ok to use?
I would use piping gel thinned with a little water and I would use it pretty close to the date you wanted. It will lose its shine over time.