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Finished bento cake in clear clamshell box

Irresistible Bento Cake

This mini cake recipe is perfect for special occasions or as a personalized treat. Fluffy vanilla sponge and a smooth buttercream frosting make every bite delightful.
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes
Course Desserts
Cuisine American
Servings 2 mini cakes

Equipment

  • 4-inch cake pans
  • Mixer

Ingredients
  

Cake Base

  • 1 cup all-purpose flour
  • 1 tsp baking powder
  • 1/4 tsp salt
  • 1/2 cup unsalted butter
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 tsp vanilla extract
  • 1/2 cup whole milk

Frosting

  • 1/2 cup butter for frosting
  • 1 1/2 cups powdered sugar
  • 1 tbsp heavy cream
  • 1 tsp vanilla extract
  • Food coloring optional

Instructions
 

  • Preheat oven to 350°F. Grease and line 4-inch pans.
  • Cream butter and sugar. Add eggs and vanilla.
  • Mix dry ingredients separately.
  • Alternate adding dry and milk to the wet.
  • Bake for 18–22 min. Cool completely.
  • Make frosting. Beat all ingredients until fluffy.
  • Frost and decorate cooled cakes.

Notes

You can store frosted cakes in the fridge for up to 3 days. Best served at room temp. Customize flavors and colors for any occasion!
Keyword bento cake, cute small cake, DIY bento cake, Korean-style mini cake, lunchbox cake, mini cake, small celebration cake