This Orange Charlotte Cake is a refreshing, easy-to-make cake that you can prepare all year round for all kinds of celebrations. Layers of ladyfingers, orange creamy mousse, and orange slices make this cake a delicate and perfect option when you don't want to bake.
Line the bottom and the insides of a 9-inch springform with foil. If you have an acetate cake collar, use it inside the springform and cover just the bottom with foil.
Grate 1-2 oranges for zest before peeling, saving the zest for the cream filling. Peel oranges, remove as much white layer as possible, and slice them into ¼ inch thick wheels.
Select the prettiest orange slices, arranging them nicely on the bottom and walls of the springform for decoration. Set aside.
Make the filling for the cake:
In a small bowl, mix unflavored gelatin with ½ cup cold water, let stand while preparing the filling. For gelatin sheets, hydrate in ice-cold water, squeeze, and use in filling.
In a saucepan, combine egg yolks, orange juice, sugar, salt, and zest from 1-2 oranges.
Cook the mixture on medium-low heat, stirring constantly, until it thickens and coats the back of a spoon, typically around 10-15 minutes.
Remove from heat, add gelatin, stirring well to blend. Set aside to cool.
Separately, use an electric mixer to whip the heavy cream. Add the whipped cream to the cold egg yolk cream and mix well.
Assemble the cake:
Pour half the mousse over the orange slices in the springform, then layer ladyfingers over the mousse.
Pour the remaining mousse over the ladyfingers, then add another layer of ladyfingers on top.
Refrigerate overnight:
Cover the springform with foil and place the cake in the refrigerator for 4-5 hours or overnight.
The next day, remove the overnight foil, place the serving plate on top, hold both the plate and springform, and flip it upside down.
Serve:
Open the springform, remove the foil, revealing a beautiful layer of orange slices covering the cake's surface.
Slice the cake and serve it as is or with more whipped cream.
This cake needs refrigeration. You can keep leftovers in the fridge for up to 4 days. Freezing the cake is not advised.
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Notes
Step-by-Step Photos: This blog post features helpful step-by-step photos to guide you through making this recipe.
Use a 9-inch springform for easy unmolding.
Arrange orange slices neatly as they will be the cake's decoration.
Ensure gelatin is properly dissolved before adding to the mixture.
Allow mousse to set well before flipping the cake.
Refrigerate overnight for best results. Ladyfingers will soften, absorbing moisture from the mousse.
For a twist, consider using blood oranges or a mix of regular and blood oranges.
Follow gelatin conversion instructions if using sheets instead of powdered gelatin.
Avoid fruits like pineapple, kiwi, papaya, and mango in raw form due to enzyme bromelain, which affects gelatin setting.