Yes, there are several delicious options you can use to fill the layers of a cake besides frosting. Here are some ideas:
Fruit Preserves or Jam: Spread a layer of fruit preserves or jam between the cake layers. Choose flavors that complement your cake, such as strawberry, raspberry, or apricot. This adds a burst of fruitiness and moisture to the cake.
Whipped Cream or Mousse: Instead of frosting, you can use whipped cream or mousse as a filling. Whip heavy cream with a bit of sugar until stiff peaks form, or prepare a flavored mousse (like chocolate, vanilla, or fruit-flavored) to add a light and creamy layer to your cake.
Custard or Pastry Cream: A smooth and creamy custard or pastry cream filling can be delightful between cake layers. You can make a classic vanilla custard or explore flavors like chocolate, lemon, or caramel.
Nutella or Peanut Butter: If you're a fan of rich and indulgent flavors, consider spreading a layer of Nutella or peanut butter between the cake layers. These options provide a decadent and slightly different twist to traditional frostings.
Fresh Fruit: Layer slices of fresh fruit between the cake layers for a refreshing and natural filling. Choose fruits like strawberries, bananas, peaches, or mixed berries. You can also macerate the fruit with a bit of sugar or citrus juice to release their juices and enhance the flavor.
Ganache: A luscious chocolate ganache makes for a rich and glossy filling. Pour warm ganache between the cake layers and let it set to achieve a velvety layer that adds both flavor and texture.
Remember to consider the stability and temperature requirements of your chosen filling. Some fillings may need to be refrigerated, while others should be added just before serving. Also, keep in mind that the texture and taste of the cake layers will interact differently with various fillings, so choose combinations that complement each other well.
These are just a few options to get you started, but feel free to experiment and get creative with flavors and textures to make your cake truly unique and delicious!