Hi every one I have to make a lake on cake any ideas do you think piping jel might work thanks

I used blue piping gel over white buttercream for these two.

http://cakecentral.com/gallery/1924916/1924924

http://cakecentral.com/gallery/1923346

I made my own piping gel using a recipe that calls for vinegar rather than lemon juice so it would be completely clear.

thank you so much Deb I'm going to try that one do you use the same amount of vinegar like the lemon juice or ratio changes thank you

Exact same ratio as with the lemon juice.