Icing a double-layer cake involves leveling, filling, crumb coating, and finally, applying the decorative frosting. Here's a step-by-step guide to achieving a beautifully iced cake:
1. Level the Cake Layers
- Why: Ensures a stable and even base for frosting and prevents the cake from tilting.
- How: Use a serrated knife to carefully trim off any domed tops, making each layer flat. A cake leveler can also be used.
2. Prepare Your Cake Stand (and Frosting)
- Protect Your Surface: Place strips of parchment paper or wax paper around the edges of your cake stand. This will keep it clean during frosting and can be easily removed later.
- Frosting Ready: Ensure your frosting is at the right consistency – smooth and spreadable, but not too runny. Prepare enough frosting to cover the entire cake (inside and out) generously.
3. Frost Between the Cake Layers
- Apply Evenly: Place one cake layer on the prepared cake stand. Spread an even layer of frosting on top, reaching the edges. The filling layer should be about half as thick as the cake layers themselves.
4. Add Layers
- Careful Placement: Gently place the second cake layer on top of the frosted filling, ensuring it's aligned with the bottom layer.
5. Create a Crumb Coat
- Seal in Crumbs: Apply a thin layer of frosting over the entire cake, including the top and sides. This "crumb coat" traps any loose crumbs, preventing them from appearing in the final layer of frosting.
- Chill Time: Refrigerate the cake for 15-30 minutes (or even longer) to allow the crumb coat to set. This makes the final frosting layer much easier to apply.
6. Frost Over the Crumb Coat
- Generous Application: Apply a thicker layer of frosting over the crumb coat, working quickly and smoothly. Use an offset spatula or icing smoother to create a clean, even surface.
- Techniques: Experiment with different icing techniques for a smooth finish or decorative textures.
7. Create a Shiny Seal (Optional)
- Hot Knife Method: Dip your offset spatula or knife in hot water, dry it quickly, and then run it over the frosting for an ultra-smooth, glossy finish. Repeat as needed.
8. Clean Up & Serve
- Remove Parchment: Carefully pull away the strips of parchment paper from under the cake, leaving a clean cake stand.
- Decoration: Add any desired decorations, such as sprinkles, chocolate shavings, or fresh fruit.
- Serve: Serve and enjoy your beautifully iced double-layer cake!