I am making a cake for my birthday tomorrow. I bought a box of chocolate mousse that I was thinking of using for the filling.

The instructions say to let it set 2 hours before serving - but that would be for eating in dessert bowls. How long do I let the mousse sit before using it in my cake?

Thanks for your help - this is the first time I am using anything other than fruit filling so I was hoping to try something different. But I want it to work. If I am heading in the wrong direction with this - please let me know. I have some leftover raspberry fruit filling from a week ago I can use...

anyone?

I've used mousse mix at work and at home. Depending on the brand they can be pretty loose when you first mix them or relatively spreadable. If it looks spreadable right after prep, I say use it. If it looks loose, set it up in the fridge per mftr instructions and check it every 20 minutes until it reaches the consistency you want.

Thank you SO MUCH! I really appreciate it!

No prob. Let me know how it turns out.