Flourless Chocolate Banana Brownies

Rich, Fudgy, Naturally Sweetened & High-Protein

These flourless chocolate banana brownies are soft, moist, deeply chocolatey, and surprisingly wholesome. They are made without flour, butter, or refined sugar, yet they still have that rich brownie texture everyone loves: fudgy in the centre, slightly chewy on top, and full of natural sweetness from ripe bananas and a little honey.

I’ll guide you through this recipe like I would guide someone standing beside me in the kitchen for the very first time. No complicated techniques, no special pastry skills — just simple ingredients, clear steps, and a few chef’s secrets that make all the difference.

Quick Overview

Prep Time: 10 minutes
Cook Time: 55–60 minutes
Total Time: 1 hour 10 minutes
Servings: 5 brownies
Difficulty: Easy
Tin Size: 20 x 10 cm loaf tin
Oven Temperature: 180°C

Step-by-Step Instructions

Step 1: Preheat the oven properly

Preheat your oven to 180°C. Do this before you start mixing the batter, because brownie batter should not sit around for too long once the baking powder is added.

Line a 20 x 10 cm loaf tin with parchment paper. Leave a little extra paper hanging over the sides — this works like handles and helps you lift the brownies out later.

Chef’s secret: Use a metal tin if possible. Metal heats more evenly and helps the brownies set better. Glass dishes hold heat differently and may make the centre cook more slowly.

Step 2: Choose the right bananas

Peel the bananas and break them into chunks. The bananas should be soft, sweet, and covered with brown spots.

Do not use green or barely yellow bananas. They will not give enough sweetness, and the brownies may taste flat.

Chef’s secret: The uglier the banana, the better the brownie. Fully ripe bananas bring natural sugar, moisture, and a creamy texture.

Step 3: Blend the wet ingredients

Add the bananas, eggs, Greek yoghurt, and honey to a blender or food processor.

Blend until the mixture looks smooth and creamy. You should not see large banana pieces.

Beginner tip: If you do not have a blender, mash the bananas very well with a fork first, then whisk them with the eggs, yoghurt, and honey. The texture will be slightly more rustic, but still delicious.

Chef’s secret: Room-temperature eggs and yoghurt blend more easily and help the brownies bake more evenly.

Step 4: Add the cocoa powder and baking powder

Add the cocoa powder and baking powder to the blender.

Blend again briefly, just until everything is combined. Do not blend for too long. You want a smooth batter, but over-blending can add too much air and make the texture less fudgy.

Important tip: Cocoa powder often forms little lumps. If you want the smoothest result, sift it before adding it to the mixture.

Chef’s secret: Add a tiny pinch of salt if you have it. Salt does not make the brownies salty — it makes the chocolate flavour taste deeper and richer.

Step 5: Check the batter texture

The batter should look thick, glossy, and chocolatey. It will be looser than classic brownie batter because this recipe has no flour, but it should not be watery.

If your bananas were extra large and the batter looks too runny, add 1 tablespoon of fine oats or 1 tablespoon extra cocoa powder to help absorb moisture.

Chef’s secret: A glossy batter usually means the ingredients are well blended and the cocoa is fully hydrated.

Step 6: Pour the batter into the tin

Pour the batter into the lined loaf tin. Use a spatula or spoon to smooth the top.

Gently tap the tin on the kitchen counter 2–3 times. This removes large air bubbles and helps the brownies bake with a more even texture.

Optional: Sprinkle dark chocolate chips or chopped nuts over the top before baking.

Step 7: Bake slowly until just set

Place the tin in the centre of the oven and bake for 55–60 minutes at 180°C.

Start checking at 50 minutes. Insert a toothpick into the centre. It should come out with a few moist crumbs, not completely wet batter.

Do not wait until the toothpick comes out perfectly clean. That usually means the brownies are overbaked.

Chef’s secret: Brownies continue to firm up as they cool. If you bake them until they look completely dry in the oven, they will be too dry after cooling.

Step 8: Cool in the tin first

Remove the tin from the oven and let the brownies cool in the tin for 10–15 minutes.

This resting time is important. The brownies are delicate when hot because they do not contain flour. If you lift them out too early, they may crack.

Step 9: Cool completely before slicing

Use the parchment paper to lift the brownies out of the tin and transfer them to a cooling rack.

Let them cool completely before slicing. For the cleanest slices, chill them in the fridge for at least 1 hour.

Chef’s secret: These brownies taste even better the next day. After resting overnight in the fridge, the texture becomes denser, fudgier, and more chocolatey.

Step 10: Slice and serve

Cut into 5 even pieces.

For clean edges, use a sharp knife and wipe the blade between cuts.

Serve cold for a dense, fudgy texture, or warm each slice for 10–15 seconds in the microwave for a softer, dessert-like brownie.

Nutrition Per Serving

Approximate values per 1 brownie, based on 5 servings:

• Calories: 200 kcal
• Protein: 12 g
• Carbohydrates: 34 g
• Fat: 5 g
• Fibre: 5 g

Chef’s Best Tips

1. Use very ripe bananas. They are the main source of sweetness and moisture.
2. Do not overbake. A few moist crumbs on the toothpick are exactly what you want.
3. Let the brownies cool fully before slicing. This is the biggest secret to a fudgy texture.
4. Sift the cocoa powder if you want a smooth, bakery-style batter.
5. Use a metal loaf tin for more even baking.
6. Add a pinch of salt to make the chocolate flavour stronger.
7. Chill the brownies before cutting if you want neat slices.
8. For a richer dessert version, add dark chocolate chips.
9. For crunch, add walnuts or hazelnuts.
10. Make them one day ahead — the flavour improves after resting overnight.

Storage Tips

Store the brownies in an airtight container at room temperature for up to 2 days.

For a fudgier texture, keep them in the fridge for up to 5 days.

To freeze, wrap individual slices in parchment paper and place them in a freezer-safe container. Freeze for up to 3 months.

Thaw at room temperature or warm gently in the microwave for about 30 seconds.

Serving Ideas

Serve these brownies with:

• A spoonful of Greek yoghurt
• Fresh berries
• A drizzle of melted dark chocolate
• A little almond or peanut butter
• Coffee or oat milk
• Banana ice cream
• A dusting of cocoa powder or cinnamon

FAQ

Can I make these brownies without a blender?

Yes. Mash the bananas very well with a fork, then whisk them with the eggs, yoghurt, and honey. Add the cocoa powder and baking powder last. The texture may be slightly less smooth, but the brownies will still taste great.

Are these brownies gluten-free?

Yes, the recipe contains no flour. However, always check the labels on your cocoa powder and baking powder to make sure they are certified gluten-free if needed.

Can I replace the honey?

Yes. You can use maple syrup or date syrup instead of honey. Keep the same amount: 30 g.

Can I use cacao powder instead of cocoa powder?

Yes. Cacao powder works well, but it has a stronger and slightly more bitter flavour. If using cacao, you may want to add a little extra honey.

Why are my brownies too wet in the centre?

They may need more baking time, or the bananas may have been very large. Bake for another 5–10 minutes and let them cool completely before judging the texture.

Why are my brownies dry?

They were probably overbaked. Check them earlier next time, around 50 minutes. The toothpick should come out with moist crumbs, not completely clean.

Can I add protein powder?

Yes, but use caution. Add only 20–25 g of unflavoured or chocolate protein powder. Too much protein powder can make the brownies dry.

Can I make them sweeter?

Yes. Add an extra 10–15 g honey or a few dark chocolate chips. Very ripe bananas will also make a big difference.

Are these brownies good for kids?

Yes. They are soft, naturally sweet, and made with simple ingredients. For younger children, skip nuts and large chocolate chunks.

Can I freeze them?

Yes. Slice them first, place parchment between the pieces, and freeze in an airtight container.