Q. I made a sponge cake recipe that makes two double layer cakes. I don’t really need two cakes at once, so I would like to freeze a sponge cake for later. That way I can get twice as much out of the recipe! I’m not sure if the moistness of a sponge cake will stand up to freezing or if it will get all mushy once thawed. Should I freeze it with the filling and topping or should I freeze it plain? What’s the best way to go about freezing a sponge cake? Can you freeze a sponge cake?
A. Yes, you can freeze sponge cake! I suggest freezing it plain if possible and adding toppings and filling later, but if it’s already assembled, sponge cake can be frozen with toppings and all. It sounds as though you haven’t assembled your sponge cake yet, so I’ll outline the instructions for freezing a plain sponge cake.
How do you freeze sponge cake?
Bake your sponge cake according to the recipe, and then let it cool completely. This step is important because if you freeze a sponge cake that is still warm, it will go mushy once thawed. Once your sponge cake is completely cooled, wrap it in a double layer of plastic wrap. Then cover it with aluminum foil. Wrap each layer individually to prevent them from sticking together when thawed. Then place the sponge cake layers in large freezer bags or in a cake box to prevent them from being crushed in the freezer. Frozen sponge cake should last in the freezer for up to three months.
To thaw frozen sponge cake, remove the cake from the freezer and allow to thaw at room temperature for several hours. To avoid having the plastic wrap stick to the cake once thawed, unwrap the cakes while still frozen and thaw on a wire rack on the counter. Once the sponge cake is completely thawed and has come to room temperature, you can add your filling and assemble the layers. Top with your favourite topping and serve.
If you plan to freeze leftover sponge cake, cut the cake into individual serving slices and wrap in plastic wrap, using toothpicks to stop the topping from touching the wrap. Place the slices into hard freezer safe containers and freeze until ready to eat. Thaw at room temperature for about an hour before eating. Do not refreeze previously frozen sponge cake, particularly one that was frozen with fillings or toppings.