Banana Coffee Cake (Vegan)

Sharing is caring!

Can’t decide between a sweet banana bread or delicious coffee cake? This recipe celebrates the best of both. It’s also gluten free, refined sugar free, dairy free, and vegan friendlyincluding the streusal and topping!

A fork slicing into a coffee cake

How to Make Banana Bread Coffee Cake

Mix all the wet ingredients in bowl.

Get your bowl. Get your brown bananas. Getchur maple syrup, flax seeds or eggs, and vanilla.

Make your flax eggs. Just mix 2 Tbsp of ground flax with 6 Tbsp of water and let it sit to “gel” for a few minutes.

If you’re not Vegan, you can also use 2 regular eggs.

Now, add your dry ingredients.

The recipe calls for both Almond Flour and Oat Flour.

Mix everything until just combined. No hand mixer or any funny fancy equipment required.

Guess what? If you only have one of those flours on hand, or just want to use less ingredients, you can use only one. Just make sure you use 1.5 Cups total.

You could also use regular All Purpose Flour, or 1:1 Gluten Free Flour. Same rule – make sure you use 1.5 cups total!

Make that Sugar Free Streusal Topping

Its just 4 simple ingredients!

Almond Flour


Maple Syrup

Coconut Oil

Mix them all up in a bowl until crumbly. Sprinkle on top of cake before baking. Watch it bake up beautifully and become the best part of the cake.

If you want, you can use any flour in place of the almond flour.

You can also use honey or coconut sugar or brown sugar in place of maple syrup.

Make sure your crumb/struesal has some texture to it. It should be like damp sand. If it is too dry, it may burn. Too wet, it won’t create that crunchy texture.

Can we talk about that Dairy Free Icing?

You betcha, we sure can!

I must confess, its not really “icing”.

Its really just melted Coconut Butter mixed with a touch of cinnamon. But its delicious and sweet and makes the cake pretty.

Is it necessary?
No, its not. But if you happen to have Coconut Butter on hand, its easy enough. If you don’t, don’t sweat it!

Can I use regular icing?
Sure! Here is a recipe if you want to use powdered sugar, butter, the whole sh’bang. Or you can use any favorite recipe you have! Or, use my simple 1-ingredient one.

What Can I sub for ______?

Here at The Granola Diaries, we are all about making recipes as simple and as accessible as possible. So, I always love to make substitutes an option!

For the Oat Flour / Almond Flour: You can sub more or less of either one. You can sub in 1:1 Gluten Free Flour, Spelt Flour, Cassava Flour. You cannot use Coconut Flour.

For the Maple Syrup: You can sub honey or coconut sugar.

For the flax eggs: You can sub in regular eggs.

For the coconut oil (in the streusal): You can sub butter, ghee, or any neutral oil.

Is this a Banana Bread or a Coffee Cake?

Its both! You’ve got your base made with mashed bananas and classic Banana Bread flavors. And then you’ve got your (refined sugar free) Coffee Cake Crumb topping (aka Streusal). And your optional dairy free icing drizzle too. All the flavors and textures combined creates a Banana Bread Coffee Cake!

Or, Banana Coffee Cake.

Banana Cake.

Coffee Banana Bread.

What would you call it?

Close up shot of a slice of banana coffee cake

FAQ About Banana Coffee Cake

Is this Vegan?
Yep! Just make sure to use Flax Eggs instead of regular ones.

Is This Gluten Free? Does it need to be?
It is! You won’t even be able to tell. If you want to use regular All Purpose flour, you can, but it won’t be gluten free anymore.

Can’t I just make a plain banana bread or plain coffee cake?
Uh, yeah, you can. Kinda boring if you ask me, but anyways…. here is a recipe for banana bread and here is a recipe for coffee cake. (Both gluten free & Dairy Free)

Is this added sugar free?
Yep! The brown bananas are naturally very sweet and a touch of maple syrup go a long way. It won’t be as sweet as a “normal” cake, but its still delicious!

Do I need to frost it?
You don’t NEEEED to do anything. But if you can, why not?!

Pin this recipe for later!

Pinterest for Banana Coffee Cake
close up of banana coffee cake

Banana Coffee Cake (Refined Sugar Free & Vegan)

Yield: 15 Pieces
Prep Time: 5 minutes
Cook Time: 35 minutes
Total Time: 40 minutes

This recipe celebrates the best of Banana Bread and Coffee Cake. It’s also gluten free, refined sugar free, dairy free, and vegan friendly – including the streusal and icing!


Wet Ingredients

  • 3 Brown Bananas
  • 2 Large Eggs or Flax Eggs for Vegan - (2 Tbsp Flax + 6 Tbsp Water))
  • 1/3 Cup Maple Syrup
  • 1 tsp Vanilla Extract

Dry Ingredients

  • 1 Cup Almond Flour (Sub: Oat Flour)
  • 1/2 Cup Oat Flour (Sub: Almond Flour)
  • 1 tsp Baking Powder
  • 1/2 tsp Cinnamon
  • 1/2 tsp Salt

Streusal Topping

  • 1/2 Cup Almod Flour or Oat Flour
  • 1 Tsp Cinnamon
  • 2 Tsp Coconut Sugar or Maple Syrup
  • 3 Tbsp Coconut Oil 

Dairy Free Icing

  • 3 Tbsp Coconut Butter
  • 1/8 tsp Cinnamon
  • 1 - 2 Tbsp Warm Water 


  1. Preheat oven to 350 degrees and grease a cake pan. You can use a 7 x 11" size or 8 or 9" square pan.
  2. In a large bowl, whisk together wet ingredients.
  3. Add dry ingredients on top of wet mixture. Try to mix the dry ingredients together on top, then incorporate into the wet mixture. Pour batter into cake pan.
  4. Wipe out the bowl to make your streusal (or use a new, small bowl). Add all streusal toppings and mash with your fingers or a fork, until it resembles crumbs or damp sand. Use your hands to sprinkle on top of the cake.
  5. Bake for 34 - 36 minutes, until fork comes out clean and streusal is carmelized. Let cool for 10 - 15 minutes, and enjoy now or later!
  6. Optional: Drizzle with icing. Mix coconut butter, warm water , and cinnamon in a bowl until it is drizzle-able. Add more water if it's too thick. Drizzle over cake or individual slices, as desired.


To ensure the cake is Vegan, use Flax Eggs instead of regular eggs.

For a thicker cake, bake in an 8x8" square pan. For a thinner but larger cake, bake in a 7x11" baking dish. A 9x13" dish will be very thin and come out more like blondies.

Nutrition Information:
Yield: 15 Serving Size: 1
Amount Per Serving: Calories: 181Total Fat: 8gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 5gCholesterol: 25mgSodium: 123mgCarbohydrates: 24gFiber: 2gSugar: 9gProtein: 5g

Did you make this recipe?

Please leave a comment on the blog or share a photo on Instagram


Sharing is caring!

9 thoughts on “Banana Coffee Cake (Vegan)”

Leave a Reply

Your email address will not be published. Required fields are marked *