I'm not sure if this is what you need but it's called Varnish and here's the recipe.
Edible Varnish
1 T Gelatin
3 T Water
1 tsp Glucose
Sprinkle the gelatin over water until it becomes spongy. Dissolve until clear over hot water (double boiler). Add Glucose. Do not refrigerate and paint on flowers, leaves or accent pieces.
I tried this formula tonight with "lol" results...I guess you have to use it while still warm/liquid. I assumed it would need to cool before brushing onto gum paste flowers, but it solidified into a jello-jiggler, lol. Maybe I can remelt it over a double-boiler?
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