Banana Smash Cake

3 min read September 13, 2026 Tonya Coleman
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The moment we all wait for at first birthday parties is the moment the smash cake is set in front of the birthday boy or girl and we all watch as they begin to dig into the cake and eat it with their hands. The moment is precious and what a photo opportunity, right? Video, better yet! Check out this yummy recipe for a banana smash cake that your little one is sure to love! It matched my 1st Zoo Birthday party perfectly by adding this DIY monkey cake topper! Want to see how to make this smash cake? Let's get started.

Recipe Time
50 to 60 min
Difficulty
Intermediate
Servings
1 Serving
Ingredients:
Makes 1 Smash Cake
  • 1 Box Yellow Cake Mix
  • 1 Container Vanilla Icing
  • 2 c. Banana Milk
  • 3 Eggs
  • 2/3 c Softened Butter
  • 1 Packet of Instant Banana Pudding
  • 2 c. Cold Milk
  • Yellow Food Coloring
  • Non-Stick Baking Spray
Step
1

Mix cake mix, eggs, banana milk and butter in a mixing bowl on medium high until fully combined. Fully cover the insides of the cake pan with a non-stick baking spray.


Banana Smash Cake step 1
Step
2

Fill the cake pan 3/4 way full with cake batter. Bake in 350 degree oven for 40 minutes.


Banana Smash Cake step 2
Step
3

When done, remove from the oven and let fully cool. Test to be sure the cake is fully cooked through by placing a skewer down into the center of the cake. Pull it out and if it comes out clean, your cake is done.

Banana Smash Cake step 3
Step
4

Turn the baking pan over and tap the cake out of the pan on to a cutting board.


Banana Smash Cake step 4
Step
5

Cut the cake in half using a serrated knife. Set each half face up on your cutting board.


Banana Smash Cake step 5
Step
6

Now, let's make the banana pudding filling. Add the banana pudding and cold milk to a mixing bowl and beat for 2 minutes. Sit aside to firm up.


Banana Smash Cake step 6
Step
7

Place the bottom half of the cake on top of a 6" cake board. Place some of the banana pudding on top of the bottom half of the cake.


Banana Smash Cake step 7
Step
8

Place the top half right on top of the pudding. Be sure to not put too much pudding on the cake so it doesn't overflow down the sides of the cake when you put the top half on it.

Banana Smash Cake step 8
Step
9

Prepare the icing by adding a few drops of yellow food coloring to a container of vanilla icing and mix well until fully combined. Add more or less of the food coloring until you have the desired yellow color.


Banana Smash Cake step 9
Step
10

Using a flat knife, fully cover the entire cake with the yellow icing. Transfer the cake to a 1st Zoo Dessert Plate. Make your own cake topper by attaching a monkey decoration from the 1st Zoo Cupcake Stand to a striped paper straw with hot glue.


Banana Smash Cake step 10
Step
11

Be sure to have lots of 1st Zoo Beverage Napkins and 1st Zoo Dessert Plates on hand. Serve immediately.

Banana Smash Cake step 11

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