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Got a couple of overripe bananas sitting on the counter? This strawberry banana cake is the perfect way to use them up. It’s moist, fluffy, and naturally gluten-free, topped with a strawberry cream cheese frosting that makes each bite extra special. Whether you’re baking for a casual get-together or just want an easy treat for the family, this cake delivers.

a slice of strawberry banana cake on a white plate with a gold fork next to a strawberry.
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Why You’ll Love This Strawberry Banana Cake

This cake brings together the natural sweetness of bananas and the fresh, juicy pop of strawberries. It’s designed for gluten-free eaters and beginner bakers, with straightforward instructions and ingredients you likely have on hand. You’ll love how simple it is to make and how quickly it disappears at any gathering. For another summery option, try this Strawberry Icebox Cake

It’s also a great snack cake to keep on hand during the week. The texture is soft and fluffy, thanks to just the right balance of ripe fruit and gluten-free flour, and it’s finished with a tangy strawberry frosting that makes it taste like a bakery treat.

If you love this, you’ll love my Gluten-Free Lemon Drizzle Cake or this Paleo Blueberry Coffee Cake for a cozy afternoon treat.

Ingredients You’ll Need

flat lay of recipe ingredients on a white marble counter, labeled.
  • Chopped fresh strawberries: tossed with flour to prevent sinking
  • Gluten-free flour (with xantham gum): provides structure and rise
  • Overripe bananas: the key to moisture and flavor (just like in this Paleo Lemon Banana Bread)
  • Granulated sugar: just enough sweetness
  • Egg: helps bind and lift the cake
  • Avocado oil (or neutral-flavored oil): keeps it moist without overpowering the flavor
  • Vanilla extract: adds a warm, sweet aroma
  • Baking soda: gives the cake lift
  • Sea salt: balances sweetness

Strawberry Frosting

  • Freeze-dried strawberries: ground into a powder for flavor and color
  • Cream cheese: tangy and rich
  • Butter: helps create a smooth texture
  • Powdered sugar: adds sweetness and structure

Ingredient Substitutions

  • Oil: Swap avocado oil with melted coconut oil or olive oil for a different flavor.
  • Flour: Use almond flour plus a binder if not using a blend with xanthan gum.
  • Egg-free: A flax egg works well here for a vegan variation.

How to Make Strawberry Banana Cake

mixing chopped strawberries in flour

Step 1: Preheat oven to 350 degrees F. Line an 8×8 baking pan with parchment paper. Toss chopped strawberries in a tablespoon of gluten-free flour. This helps keep them evenly distributed.

a blender filled with bananas

Step 2: Blend bananas until smooth.

blended banana with eggs and wet ingredients

Step 3: Stir in sugar, egg, avocado oil, and vanilla extract until just combined.

whisking flour in a mixing bowl

Step 4: In a large bowl, whisk together gluten-free flour, baking soda, and sea salt.

mixing wet and dry ingredients

Step 5: Add the wet ingredients and stir until just combined. Avoid overmixing.

folding chopped strawberries into the strawberry banana cake batter.

Step 6: Fold in coated strawberries.

cake batter in a square pan.

Step 7: Pour the batter into the prepared pan. Spread evenly. Bake for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean. Let the cake cool completely before frosting.

freeze dried strawberries in a food processor

Step 8: Grind freeze-dried strawberries into a powder.

hand mixers making strawberry cream cheese frosting.

Step 9: In a bowl, beat cream cheese, butter, powdered sugar, and strawberry powder until smooth.

frosting the top of a strawberry banana cake.

Step 10: Frost the cooled cake evenly, slice into 16 squares, and serve.

Baking Tips for the Perfect Cake

  • Use overripe bananas for maximum moisture and flavor.
  • Coat chopped strawberries in a bit of flour before adding to the batter to keep them from sinking.
  • Stir the batter just until combined. Overmixing can make the cake dense.
  • Let the cake cool fully before frosting to prevent the frosting from melting and sliding off.
cake squares topped with strawberry cream cheese frosting.

Storage and Freezing Tips

  • Fridge: Store leftovers in an airtight container for up to 3 days.
  • Freezer: Wrap individual slices in plastic wrap and place in a freezer-safe container or bag. They’ll keep for up to 3 months. Thaw overnight in the fridge before serving.
a strawberry banana cake square with a bite taken out.

Recipe FAQs

How do I keep strawberries from sinking in the cake?

Tossing them with flour before folding them into the batter helps keep them suspended.

Can I use frozen strawberries instead of fresh?

Yes, but thaw them first and pat dry thoroughly to avoid excess moisture.

What’s the best way to use overripe bananas in cake recipes?

Blend or mash them until smooth, then add to your wet ingredients for moisture and sweetness.

How long should I let the cake cool before frosting?

At least one hour at room temperature, or 30 minutes in the fridge, so the frosting goes on smoothly.

This strawberry banana cake is a crowd-pleasing, easy-to-make dessert that’s perfect for gluten-free families and busy bakers. If you give it a try, leave a comment below and let me know how it turned out. I’d love to hear if you made any fun swaps or served it at a special event.

Looking for more easy gluten-free cake recipes? Try my Gluten-Free Carrot Cake or Banana Upside Down Cake.

More Delicious Treats

If you make this recipe, please leave me a star rating and comment below! I love to hear your thoughts and feedback. Follow me on social media Instagram, Facebook, and Pinterest for even more delicious recipes!

Servings: 16 squares

Moist Strawberry Banana Cake (Easy & Gluten-Free)

Got a couple of overripe bananas sitting on the counter? This strawberry banana cake is the perfect way to use them up. It's moist, fluffy, and naturally gluten-free, topped with a strawberry cream cheese frosting that makes each bite extra special. Whether you're baking for a casual get-together or just want an easy treat for the family, this cake delivers.
Prep: 10 minutes
Cook: 35 minutes
Cooling Time: 1 hour
Total: 1 hour 45 minutes
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Ingredients 

  • 1 cup chopped fresh strawberries, + 1 tbsp gluten free flour
  • 2 large ripe bananas
  • 1 cup granulated sugar
  • 1 egg
  • 1/3 cup avocado oil, or any neutral flavored oil
  • 1 tsp vanilla extract
  • 1 1/4 cup gluten free all-purpose flour, with xantham gum
  • 1 tsp baking soda
  • 1/4 tsp sea salt

Strawberry Frosting

Instructions 

  • Preheat oven to 350 degrees, and line an 8×8 baking pan with parchment paper.
  • Add chopped strawberries to a bowl and toss with 1 tbsp of flour until coated evenly. This helps the strawberries not sink to the bottom when baking. Set aside.
    1 cup chopped fresh strawberries
  • Peel bananas and blend in a blender until smooth.
    2 large ripe bananas
  • Add sugar, egg, avocado oil, and vanilla extract to the blended bananas. Blend until just combined.
    1 cup granulated sugar, 1 egg, 1/3 cup avocado oil, 1 tsp vanilla extract
  • In a large bowl, stir together flour, baking soda, and sea salt.
    1 1/4 cup gluten free all-purpose flour, 1/4 tsp sea salt, 1 tsp baking soda
  • Add the blended wet ingredients to the flour mixture, and stir until just combined. It should be thick and sticky.
  • Fold in the chopped strawberries.
  • Transfer the batter to the prepared baking pan and spread out into an even layer. Bake for 30-35 minutes until the toothpick inserted in the center comes out clean. Cool for 15 minutes then transfer to cool completely.
  • Once the cake is completely cool, place freeze dried strawberries in a coffee grinder or a food processor, then grind until powdery.
    1/2 cup freeze dried strawberries
  • Add the ground up freeze dried strawberries to a bowl, along with cream cheese, butter, and powdered sugar. Use a hand mixer to mix until smooth and creamy.
    1/2 cup cream cheese, 1/4 cup powdered sugar, 1/4 cup butter
  • Frost the top of the cooled cake in an even layer. Slice into 16 squares and serve!

Notes

    • Use overripe bananas for maximum moisture and flavor.
    • Coat chopped strawberries in a bit of flour before adding to the batter to keep them from sinking.
    • Stir the batter just until combined. Overmixing can make the cake dense.
    • Let the cake cool fully before frosting to prevent the frosting from melting and sliding off.
 

Nutrition

Serving: 1serving – makes 16, Calories: 204kcal, Carbohydrates: 29g, Protein: 2g, Fat: 9g, Saturated Fat: 4g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 4g, Trans Fat: 0.1g, Cholesterol: 25mg, Sodium: 154mg, Potassium: 180mg, Fiber: 2g, Sugar: 19g, Vitamin A: 209IU, Vitamin C: 97mg, Calcium: 19mg, Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this recipe?Leave a comment below or tag @whatgreatgrandmaate!

Jean Choi

Iโ€™m a food lover and recipe developer living in Southern California. I love to share simple and approachable gluten-free recipes that are healthy but never sacrifice on flavor.

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