Generally, it's not recommended to directly put fondant decorations on whipped cream frosting due to the moisture content of the whipped cream. The moisture can cause the fondant to become sticky, soften, and eventually melt or droop.
Here's a more detailed breakdown:
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Moisture Problems: Whipped cream has a high moisture content. Fondant is essentially sugar paste, and sugar dissolves in water. Therefore, prolonged contact with whipped cream will cause the fondant to absorb moisture and lose its shape and texture.
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Alternatives and Precautions: While direct application is discouraged, there are a few ways to make it work temporarily:
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Short-Term Display: If the cake is for immediate consumption (within a few hours) and isn't refrigerated, you might get away with it. However, constantly monitor the fondant for any signs of melting or sagging.
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Barrier: A thin layer of melted chocolate or royal icing on the back of the fondant decoration can act as a moisture barrier, giving you slightly more time. Let the barrier dry completely before placing the fondant on the whipped cream.
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Toothpicks: As the provided text suggests, toothpicks can be used to secure larger fondant toppers and prevent them from sinking into the whipped cream.
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Better Frosting Options for Fondant: If you plan to use fondant decorations, consider using a more stable frosting such as:
- Buttercream
- Ganache
- Royal Icing
These frostings have a lower moisture content and provide a firmer base for fondant decorations.
In summary, while technically possible for very short periods with specific precautions, it's generally best to avoid placing fondant decorations directly on whipped cream frosting to prevent melting and maintain the decoration's integrity.
