Hi Christine, you can try this recipe by Wilton. It is on the sweeter side though due to the amount of icing sugar in it but I have used this to pipe my rose swirls and hydrangeas and they hold their shape really well. http://www.wilton.com/recipe/High-Humidity-Icing-Recipe-I
-- Bito, Handmade with Love..just for you!, www.bunsintheoven.my
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