Moist & Wholesome Flourless Banana Cake (Gluten-Free, Guilt-Free Treat)

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By Gianna Poulef

Flourless Banana Cake

Thank you so much for stopping by my kitchen today! I’m beyond excited to share this flourless banana cake recipe with you—a wholesome, no-fuss cake that uses just a blender and a handful of pantry staples. It’s naturally gluten-free, packed with ripe bananas for sweetness, and has the kind of dense, moist texture that makes every bite feel comforting.

If you’re always on the lookout for easy, healthier bakes (like me on a busy Sunday morning!), then this one’s going to be your new best friend. Make sure to subscribe to my email list so you never miss a cozy recipe like this one!

Overview of Recipe Content

This flourless banana cake is the kind of recipe that works everywhere—lazy Sunday brunch, an after-school snack, or even dressed up as dessert with a dollop of whipped cream.

  • Why You’ll Love It: No flour, no refined sugar, just wholesome ingredients. You get all the satisfaction of banana bread but in a denser, cake-like form.
  • Taste: Naturally sweet, slightly nutty from the oats, and perfectly moist from those ripe bananas.
  • Nutritional Perks: Gluten-free, high in fiber from oats, and refined sugar-free.
  • Seasonal Relevance: Ideal for fall and winter baking, but let’s be real—bananas are always in season!

Ingredients You’ll Need:

  • 2 cups (180g) old-fashioned rolled oats
  • 3 medium ripe bananas (about 1 ½ cups mashed)
  • 2 large eggs
  • 2 tsp (10g) baking powder

Tools You’ll Need:

  • Blender or food processor
  • Loaf pan (8×4 or 9×5)
  • Mixing spatula

Substitutions:

  • Swap oats for quick oats if that’s what you have.
  • Make it vegan with flax eggs (2 tbsp ground flax + 5 tbsp water).
  • Add-ins: chocolate chips, walnuts, blueberries, or a swirl of peanut butter.

How to Make Flourless Banana Cake

Here’s the fun part—this recipe is as easy as blend, pour, and bake!

  1. Blend the oats until they become a fine flour. Your kitchen will smell faintly toasty.
  2. Add bananas, eggs, and baking powder to the blender. Blend until smooth and creamy.
  3. Pour into a greased loaf pan and smooth the top with a spatula.
  4. Bake at 350°F (175°C) for about 35–40 minutes, until golden brown and a toothpick comes out clean.
  5. Cool completely before slicing (this helps the cake set and hold its shape).

What to Serve with Flourless Banana Cake

  • Spread with almond butter or peanut butter for breakfast fuel.
  • A drizzle of honey or maple syrup if you’re craving extra sweetness.
  • Pair with coffee, chai, or a warm latte for an afternoon pick-me-up.

Tips for Making It Perfect

  • Use ripe bananas—the spottier, the sweeter.
  • Don’t over-blend after adding eggs, or the cake may sink.
  • Line your pan with parchment for easier cleanup.
  • Make ahead: Bake, cool, and freeze slices for busy mornings.

Storage Instructions

  • Room Temp: Store in an airtight container for up to 2 days.
  • Fridge: Keeps well for up to 5 days.
  • Freezer: Wrap slices individually and freeze up to 2 months. Thaw at room temp or pop into the toaster oven.

General Information

This cake is a cross between banana bread and a snack cake but with a modern, flourless twist. Flourless baking has deep roots in European desserts (think almond cakes), and this version gives it an American comfort food spin.

Frequently Asked Questions

Can I make this without eggs?
Yes—use flax eggs for a vegan version.

Do I need a blender?
Yes, but a food processor works too. You can also buy oat flour instead.

Can I add chocolate chips or nuts?
Absolutely—stir in ½ cup of your favorite mix-ins before baking.

How do I keep it from being too dense?
Don’t over-blend and make sure your bananas are very ripe.

Conclusion

This flourless banana cake is proof that healthy doesn’t have to be boring. With just a few ingredients, you get a moist, wholesome treat perfect for breakfast, snack time, or dessert. If you loved this recipe, you might also enjoy my Protein Cookie Dough or Oatmeal Banana Pancakes.

I’d love for you to give this recipe a try and share it with your loved ones—it’s the kind of bake that always brings smiles!

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Interactive Elements

If you make this recipe, please leave a review or comment below. I’d be thrilled if you shared a photo on Pinterest (find me at Poulef Recipes on Pinterest) or tagged me on Instagram @Poulef.

Nutritional Information (per slice, ~10 servings)

CaloriesProteinCarbsFiberFatSugar
1505g27g3g3g9g
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Moist & Wholesome Flourless Banana Cake (Gluten-Free, Guilt-Free Treat)


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  • Author: Poulef
  • Total Time: 50 minutes
  • Yield: 10 slices 1x

Description

This super simple Flourless Banana Cake is moist, naturally gluten-free, and made with just oats, bananas, and eggs. A wholesome, guilt-free treat perfect for breakfast, snack, or dessert.


Ingredients

Scale

2 cups (180g) old-fashioned rolled oats

3 medium ripe bananas (about 1 ½ cups mashed)

2 large eggs

2 tsp (10g) baking powder


Instructions

1. Preheat oven to 350°F (175°C). Grease and line a loaf pan.

2. Blend oats until fine, then add bananas, eggs, and baking powder. Blend until smooth.

3. Pour into loaf pan and bake for 35–40 minutes until golden brown.

4. Cool completely before slicing.

Notes

Use very ripe bananas for best sweetness.

Add chocolate chips, walnuts, or blueberries for variation.

Store leftovers in fridge or freezer for quick snacks.

  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Category: Snack, Dessert, Breakfast
  • Method: Baked
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 150
  • Sugar: 9g
  • Sodium: 80mg
  • Fat: 3g
  • Saturated Fat: 1g
  • Unsaturated Fat: 2g
  • Trans Fat: 0g
  • Carbohydrates: 27g
  • Fiber: 3g
  • Protein: 5g
  • Cholesterol: 45mg
Moist & Wholesome Flourless Banana Cake (Gluten-Free, Guilt-Free Treat)
Gianna Poulef
CEO, Chef & Recipe Creator at BLYNO LLC | Website

I’m Gianna Poulef from Poulef Recipes. I love sharing perfected dishes from my kitchen. I’m sure they’ll earn a spot in your heart. Let’s savor this journey together!.

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