This mini lunch box cake recipe is the easiest way I could come up with to create these delicious little treats. No special equipment needed! In case you don’t know, lunch box cakes are cakes that are miniature versions of regular full size cakes. That means, you get to decorate them just like regular cakes. In this recipe, I’ll show you how to make your own sprinkles, so you can really make these lunch box cakes you own.
Ingredients
(Makes three 4 inch cakes)
For the cake
140 g (1¼ stick) Softened butter
50 g (3½ tbsp) Coconut oil
200 g (1 cup) sugar
1 tbsp Vanilla extract
3 Large Eggs
320 g (2⅓ cups) All purpose flour
4 tsp Baking powder
240g (1 cup) Milk or buttermilk
½ tsp Salt
For the buttercream
400g (3½ sticks) Softened butter
400g (3 cups ) Powdered sugar
2 tsp Vanilla extract
Splash of milk if desired
For the sprinkles
400 - 500 g (3 - 4 cups) Powdered sugar
1 Egg white
Juice of half a lemon
Any flavour extract you prefer (vanilla, almond etc.)
Method
For the cake
In a large bowl cream together the butter, oil, white sugar and vanilla.
Add the eggs one at the time.
Add the sifted dry ingredients and buttermilk and mix to combine.
Pour the cake batter in 13 x 10 inch (30 cm x 25 cm) pan greased and lined with parchment paper.
Bake the cakes in a preheated oven at 150 °C (300 °F) for around 25 - 30 minutes, or until a toothpick comes out clean. Do not over bake.
Allow to cool completely.
For the sprinkles/decorations
Combine together egg white, powedered sugar and lemon juice. Add food coloring and flavorings if desired.
Make the sprinkles as shown in the video.
For the buttercream
In a bowl beat the butter and vanilla extract for 2 minutes until fluffy and softened.
Gradually add the powdered sugar and continue to beat this mixture until smooth, creamy and well-combined.
For a looser frosting add room temp milk or a splash of heavy cream.
Buttercream frosting can be made up to a week in advance. If making this frosting in advance, you can store it in an airtight container in the fridge. When ready to use bring it to room temperature before re-whipping and using it.
Once the cake is iced, cover the cake and store it at room temp.
Tips
Baking time will vary depending on the baking dish you use. So please keep that in mind and check your cake at the 25 minute mark.
Cut out your mini cakes only when ready to assemble the lunch box cakes.
If desired soak the cakes in simple syrup.