Piping jelly?

Huh. I thought it's a kind of jelly. Goeeey.
Should I buy it, or can I make it on my own?
Let see. Let see.

 
Piping jelly recipe:
Ingredients:
- ¼ cup lemon juice
- 1 level tablespoon corn flour
- ¼ cup water
- 4 tbs castor sugar

 
Method:
Place all ingredients in a small saucepan and dissolve over low heat stirring continuously till mixture comes to the boil.
Let the mixture thicken. Then remove from heat.
If mixture thickens too much add a little more water.
Store in fridge in airtight container.
Thank u to : http://www.sugarartcreations.com.au/sugar-art/sugar-art-cake-decoration-recipe-piping-jelly.htm


 
Aha. That easy?
Bagus, so boleh buat tartlet sendiri J