Here it is again. From www.wrenscottage.com
Piping Gel is a multi-purpose transparent gel that adds shimmering accents, colorful highlights, and sparkle to cakes.
2 envelopes (2 tablespoons) unflavored gelatin
2 tablespoons cold water
2 cups light corn syrup
Sprinkle the gelatin over the cold water in a small saucepan and let set for about 5 minutes. Heat on low until the gelatin has become clear/dissolved - Do not boil. Add syrup and heat thoroughly. Cool and store, refrigerated, for up to 2 months.
Add 1/2 teaspoon piping gel to one cup of thin consistency buttercream icing to produce smoother writing and printing and pointed leaf tips.