Simple Banana Zucchini Cake

Last Updated: 2026 January 20
recipe for a simple and quick banana zucchini cake with icing

Recipe for moist banana cake with zucchini and icing

If you love moist, aromatic bakes, then this recipe will steal your heart. Banana zucchini cake is the perfect combination of classic banana bread with delicate zucchini cake – soft, full of flavor, and long-lasting freshness. Ripe bananas give it natural sweetness, and grated zucchini makes the cake incredibly moist and light. The whole thing is finished with a simple icing, which adds a touch of sweet elegance. It’s a great way to use overripe bananas and excess zucchini – try it, and you’ll see that it’s a perfect duo for any occasion!

moist zucchini cake with bananas and icing

Banana Zucchini Cake – simple step-by-step recipe

If you like zero-waste baking and have ripe bananas and zucchini at home, then you must try this recipe!

recipe for easy banana-zucchini cake with glaze

Banana-zucchini cake recipe with video

Wypieki Beaty
A recipe for a very simple and quick moist banana and zucchini cake covered with glaze.
5 z 1 oceny
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Course Cakes
Kuchnia American cuisine, English cuisine
Servings 10
Calories 247 kcal
Wyposażenie
  • Loaf pan approx. 30/10 cm.
Składniki

ingredients for banana-zucchini cake

  • 225 g all-purpose flour (1½ cups)
  • 100 g sugar (½ cup – or to taste)
  • 1 teaspoon baking soda
  • 0,5 teaspoons baking powder
  • 1 teaspoon cinnamon
  • 0.5 teaspoon salt
  • 200 g bananas (ripe, weight without peel – approx. )
  • 2 eggs (size L)
  • 120 ml oil
  • 250 g zucchini (approx )

ingredients for cake glaze

  • 150 g powdered sugar (1 cup)
  • 3 tablespoons milk (approx – to consistency)
Instrukcja
 

How to make banana-zucchini cake step by step

  • Preheat the oven to 180℃ (top/bottom heat mode) or 170℃ (fan-assisted).
  • Grease the baking pan with butter and dust with flour or breadcrumbs (you can also line it with baking paper).
    forma do pieczenia przygotowana na pieczenie ciasta
  • In a large bowl, mix together the dry ingredients for the cake.
    225 g all-purpose flour, 1 teaspoon baking soda, 0,5 teaspoons baking powder, 1 teaspoon cinnamon, 0.5 teaspoon salt, 100 g sugar
    suche składniki na ciasto cukiniowo-bananowe
  • In a second bowl, thoroughly mash the bananas with a fork.
    200 g bananas
    rozgniatanie bananów widelcem na ciasto z bananami i cukinią
  • Add eggs and oil to them and mix.
    2 eggs, 120 ml oil
    mokre składniki na ciasto bananowo-cukiniowe
  • Pour the wet ingredients into the dry ones.
    dodawanie mokrych składników do suchych do ciasta bananowo-cukiniowego
  • Mix into a batter – it will be quite thick.
    mieszanie ciasta bananowego
  • Grate the zucchini on a coarse grater – if it’s very juicy, you can lightly squeeze out the excess liquid.
    250 g zucchini
    tarcie cukinii do ciasta bananowego
  • Add the zucchini to the batter and mix thoroughly with a spatula.
    mieszanie ciasta bananowego z tartą cukinią
  • Transfer the batter to the prepared pan.
    ciasto cukiniowo-bananowe przełożone do formy do pieczenia
  • Place the pan in the oven and bake for about 45 minutes – until a dry skewer comes out.
  • After baking, cool the cake completely before pouring the glaze over it.

How to make glaze for banana-zucchini cake

  • Sift the powdered sugar into a bowl and gradually add milk – mix until you get a thick and slightly runny glaze.
    150 g powdered sugar, 3 tablespoons milk
  • Coat the top of the cake with it.
Film
Uwagi
A glass has a capacity of 250 ml.
See the notes below the recipe for possible substitutes for the ingredients used, or tips for the recipe. 
The recipe video is in Polish, but you can watch it to see the step-by-step process.
Wartości Odżywcze
Serving: 100gCalories: 247kcalWeglowodany: 36gProtein: 4gTłuszcz: 11g
Keyword banana and zucchini cake, moist zucchini cake, zero waste cake
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quick moist banana cake with zucchini and icing

Easy banana and zucchini cake – why is it worth baking?

Why is it worth baking this cake? Firstly – because it tastes great – it’s delicately sweet and nicely moist, secondly – because it’s super simple and quick to make, and thirdly – because you can use ripe bananas that no one wants to eat. Thanks to this, you don’t waste food and additionally sneak a portion of fruits and vegetables into your daily diet. All pros, no cons ;) So if you have green zucchini and bananas at home, you must try this recipe!

I found the recipe on the Mom Dish blog – I’m presenting it here with my minimal changes.

simple zucchini and banana cake recipe step by step

Ingredients needed for banana-zucchini cake

To bake this easy banana and zucchini cake, you will need a few basic ingredients that you probably already have at home. Below is a condensed list of the products I used and possible substitutes.

  • bananas – you need two medium bananas here; mine weighed 190 g after peeling. You can have a little less or a little more. Thanks to adding bananas, I only used 100 g of sugar (i.e., 0.5 cup) in the cake itself. The cake is not very sweet, so if you prefer sweeter baked goods, you can use a little more sugar.
  • zucchini – green is best, but yellow will also be fine. I had a large one over 500 g, so I used about half of it. Grate it on a coarse grater, and if it’s very juicy, you can squeeze out the excess liquid with your hand before adding it to the batter.
  • oil – I used rapeseed oil, but you can also use any other mild-flavored oil.
  • baking soda – the cake is dense and heavy due to the bananas and zucchini, so it needs baking soda here, which has a stronger leavening action than baking powder. If you don’t have baking soda, you must add as much as 3 teaspoons of baking powder here for the cake to have the “strength” to rise.
zucchini-banana cake with frosting simple step-by-step recipe

How to enhance the flavor of banana-zucchini cake?

If you like, you can also add chocolate to the cake before baking. Choose your favorite – dark, semi-sweet, or milk chocolate, chop it with a knife, and mix it into the batter. You can also use chocolate chips.

Besides chocolate, chopped nuts or dried fruits – such as raisins – would also work well here.

Remember that these additions will further increase the cake’s calorie count!

easy banana zucchini bread

Can you make banana and zucchini cake without frosting?

Of course! If you don’t want to further increase the cake’s calorie count, you can omit the frosting and just sprinkle the baked cake with a little powdered sugar. A cake without frosting will have approximately 260 kcal per serving (when divided into 10 slices).

You can also make a chocolate glaze for the cake – just melt 100 g of chocolate in a small amount of hot heavy cream and pour this glaze over the top of the zucchini and banana cake.

recipe for easy cake with bananas and grated zucchini

How to store banana-zucchini cake?

Banana-zucchini cake, after baking and cooling, should be transferred to an airtight container with a lid to keep it fresh and moist for as long as possible. Due to the bananas and grated zucchini used, the cake is best eaten within three days. After this time, it’s worth storing it in the refrigerator to prevent it from spoiling.

You can also freeze this quick zucchini and banana cake for about 3 months.

I hope this easy banana zucchini cake will also grace your table and that you’ll gladly return to the recipe. I’d be delighted if you leave a comment under the recipe afterwards.

quick banana and zucchini cake
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Recommended recipes for banana and zucchini cakes

Be sure to also try my other recipes for simple and quick banana cakes and zucchini cakes. You’ll find a wide selection of them on the blog, so you’re sure to find the perfect recipe for yourself. Here I recommend, among others, three such recipes:

Published On: 2025 October 6

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