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Rich Chocolate Ganache Filling for Layer Cakes

A decadent slice of dark chocolate cake featuring a smooth chocolate ganache filling for cake between the layers.

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This recipe provides instructions for making a rich, creamy chocolate ganache perfect for using as a stable filling between cake layers.

Ingredients

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  • 12 ounces (340g) high-quality semi-sweet or dark chocolate, finely chopped
  • 1 cup (240ml) heavy whipping cream
  • 2 tablespoons unsalted butter, room temperature (optional, for extra richness)
  • 1 teaspoon pure vanilla extract

Instructions

  1. Place the finely chopped chocolate into a medium, heat-safe bowl.
  2. Pour the heavy whipping cream into a small saucepan. Heat the cream over medium heat until it just begins to simmer around the edges. Do not let it boil rapidly.
  3. Remove the hot cream from the heat and immediately pour it over the chopped chocolate in the bowl.
  4. Let the mixture stand undisturbed for 5 minutes to allow the heat to melt the chocolate completely.
  5. Add the room temperature butter, if using, and the vanilla extract to the bowl.
  6. Begin stirring slowly from the center of the bowl, gradually widening your circles until the mixture is completely smooth and glossy. This process emulsifies the ganache.
  7. For a standard cake filling, allow the ganache to cool and thicken at room temperature for 1 to 2 hours, stirring occasionally, until it reaches a spreadable consistency similar to peanut butter.
  8. If you need a firmer filling or a whipped texture, chill the ganache for 30 minutes, then use an electric mixer to whip it until light and fluffy.
  9. Spread the cooled ganache evenly between your cake layers.

Notes

  • For a stable chocolate ganache for layer cake, use a ratio of 1 part cream to 2 parts chocolate by weight for a firmer set. This recipe uses a slightly higher cream ratio for a creamier filling.
  • If the ganache separates (looks oily), add one tablespoon of warm water or milk and whisk vigorously until it comes back together.
  • If you need to make the ganache firmer faster, chill it in the refrigerator, but stir it every 15 minutes to prevent hard edges from forming.

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