Zucchini Banana Spice Cake with Cream Cheese Frosting

Prep: 15 minCook: 35 min1 cake (8 slices)mediumAmerican
Zucchini Banana Spice Cake with Cream Cheese Frosting

A moist, tender snack cake that cleverly combines sweet mashed bananas with fresh shredded zucchini for incredible texture and subtle veggie nutrition. Warm cinnamon and nutmeg create cozy spice notes that complement both fruits beautifully. The rich cream cheese frosting adds tangy sweetness that balances the cake's natural flavors perfectly. This recipe transforms humble garden zucchini into an irresistible dessert that's perfect for afternoon coffee, potluck gatherings, or whenever you need a comforting homemade treat. The cake stays wonderfully moist thanks to the fruit and vegetable combination, making it an excellent choice for meal prep or gift-giving.

Ingredients

Yield: 1 cake (8 slices)
  • 1 ½ cup flour
    almond flour3/4 ratiogluten-freegluten-free

    use 3/4 amount for proper texture

    Full guide →
  • 1 cup sugar
    coconut sugar1:1refined-sugar-free

    slight caramel flavor

    Full guide →
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon ground nutmeg
  • 1 teaspoon baking powder
  • ¼ teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup ripe banana, mashed
  • 1 cup zucchini, shredded
  • 1 egg
  • ½ cup vegetable oil
    applesauce1:1fat-reduced

    cake will be slightly less moist

    Full guide →
  • 1 teaspoon vanilla
  • 4 ounce cream cheese, softened
    vegan cream cheese1:1dairy-free

    check package instructions for beating

    Full guide →
  • 4 tablespoon butter, softened
  • 2 cup powdered sugar
    coconut sugar1:1refined-sugar-free

    slight caramel flavor

    Full guide →
  • ¼ teaspoon cinnamon
  • 1 tablespoon milk

Instructions

  1. 1

    Heat oven to 350 degrees and spray an 8-inch square pan with cooking spray, then line with parchment paper

  2. 2

    Mix together flour, sugar, cinnamon, nutmeg, baking powder, baking soda and salt in a large bowl

  3. 3

    Combine bananas, zucchini, egg, vegetable oil and vanilla in medium bowl

  4. 4

    Add wet ingredients to dry ingredients all at once and stir just until combined

  5. 5

    Spread batter into prepared pan and bake for 35 to 40 minutes or until cake begins to turn brown on top and toothpick inserted in center comes out clean

  6. 6

    Cool cake completely in pan for about 1 hour

  7. 7

    Beat cream cheese, butter, powdered sugar, cinnamon and milk with electric mixer on medium speed until smooth and creamy

  8. 8

    Spread frosting evenly over top of cooled cake

Tips

Tip 1

Don't overmix the batter once you add wet to dry ingredients - stir just until combined to keep the cake tender

Tip 2

Make sure the cake is completely cool before frosting or the cream cheese frosting will melt

Tip 3

Squeeze excess moisture from shredded zucchini with paper towels for best texture

Good to Know

Storage

Cover and refrigerate for up to 5 days

Make Ahead

Cake can be made 1 day ahead and frosted before serving

Serve With

Serve at room temperature or chilled from refrigerator

See pairing guide →

Common Mistakes

Watch

Don't overbake or cake will become dry - test with toothpick at minimum time

Watch

Ensure cream cheese and butter are properly softened for smooth frosting

Substitutions

Dairy-Free Swaps

cream cheese
vegan cream cheese1:1dairy-free

check package instructions for beating

Full guide →

Gluten-Free Swaps

flour
almond flour3/4 ratiogluten-freegluten-free

use 3/4 amount for proper texture

Full guide →

General Alternatives

sugar
coconut sugar1:1refined-sugar-free

slight caramel flavor

Full guide →
vegetable oil
applesauce1:1fat-reduced

cake will be slightly less moist

Full guide →
Find more substitutions →

FAQ

Can I make this without frosting?

Yes, the cake is delicious plain or with just a dusting of powdered sugar. The moist texture from banana and zucchini makes frosting optional.

How long does this cake keep?

Covered in the refrigerator, this cake stays fresh for up to 5 days. The cream cheese frosting requires refrigeration for food safety.

Can I freeze this cake?

Yes, wrap unfrosted cake tightly and freeze for up to 3 months. Thaw completely before frosting and serving for best texture.