I am making a chocolate mousse that includes gelatin, and I want to double the recipe. Do I need to double both the gelatin and the amount of water it’s dissolved in?

  • There is no gelatin in a mousse, just eggses. Perhaps it is pudding you are making?
    – bmargulies
    Commented Dec 24, 2017 at 17:19
  • 4
    @bmargulies While a classic mousse au chocolat doesn't use gelatin, there are many recipes that do.
    – Stephie
    Commented Dec 25, 2017 at 17:09

1 Answer 1


You need to double the gelatin, as it’s responsible for the texture and “stiffness” of your mousse.

You don’t have to double the water, but you can, of course. The water is no essential ingredient, it’s just a means to dissolve the gelatin. But of course the gelatin will dissolve easier, if enough water is present, so I personally would use perhaps 1.5 times instead of double the water amount.

Please note that this answer is only valid for the kind of recipes where gelatin is dissolved in a small amount of water and used to thicken a larger amount of cream / mousse / cream cheese or similar. For recipes that dissolve the gelatin directly in the liquid, e.g. a gelatin dessert or jello, this liquid is an essential ingredient and must also be doubled.


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