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slices of vegan banana cake on a sheet pan

Vegan Banana Snack Cake

  • Author: Mikyla
  • Prep Time: 20
  • Cook Time: 30
  • Total Time: 50 minutes
  • Yield: 8 1x
  • Category: Dessert
  • Method: Baking
  • Diet: Vegan


Super soft vegan banana cake stuffed with rainbow sprinkles and topped with a creamy vanilla buttercream sprinkle frosting. 



Vegan Banana Snack Cake:

  • 1/3 cup oil (coconut, sunflower, vegetable)
  • 3 extra ripe bananas mashed 
  • 2 teaspoons baking powder
  • 2 tablespoons bob’s egg replacer 
  • 4 tablespoons warm water
  • 1 cup of all-purpose flour
  • 1/4 cup water
  • 1 1/2 teaspoons vanilla extract 
  • 1/2 cup of organic can sugar 
  • 1/8 teaspoon salt
  • 1/4 cup vegan rainbow sprinkles + 3 tablespoons for frosting

Vegan Funfetti Frosting:

  • 1/2 cup room temperature vegan butter 
  • 1/4 cup room temperature vegan cream cheese (optional- or sub with more butter)
  • 2 cups powdered sugar
  • 2 teaspoons vanilla extract 
  • Optional: 2 Tbsp. of non-dairy milk if needed 


  1. Preheat the oven to 350 degrees
  2. Mix bob’s red mill egg replacer with 4 tablespoons of water and set aside for 5 min
  3. Grease or line an 8×8 pan with parchment paper
  4. In the egg replacer bowl, mash 3 extra ripe bananas.
  5. Add oil, water, vanilla, and sugar. Stir well.
  6. Slowly add flour, baking powder, and salt into the bowl while stirring continuously. Careful not to over stir.
  7. Fold in sprinkles to the batter.
  8. Pour batter into the 8×8 pan and bake for 30-35 minutes until a toothpick comes out clean.
  9. Allow to cool completely before frosting – 1 hour approximately. 

Vegan Vanilla Butter Cream Frosting:

  1. Whip together room temperature vegan butter and vegan cream cheese. 
  2. Add vanilla 
  3. Sift in powdered sugar and stir continuously until light and fluffy. Add non-dairy if needed. 
  4. Toss in sprinkles!

After the cake is cooled, add a layer of funfetti buttercream frosting, slice, and enjoy!


If you do not have Bob’s Red Mill egg replacer you can use ground flaxseeds instead. Use 2 tablespoons of flaxseeds with 6 tablespoons of water. 

You can make the buttercream without vegan cream cheese if you would like as well. Simply substitute with more vegan butter. 


  • Serving Size: 1 square
  • Calories: 200

Keywords: banana bread, vanilla cake, funfetti cake, vegan frosting, vegan banana bread, snack cake, vanilla buttercream frosting, sprinkles