Take agar agar in a bowl, add water and let it soak for 10 mins. Now take it in a sauce pan and heat on low heat stiring often till it is completely melted.
Take cream, condensed milk, milk, sugar in a sauce pan and bring it to a boil.
Now add in the agar agar liquid and essence and mix well.
Pour this into moulds and chill in fridge for 2 to 4 hours before slicing.