Fudgy Gluten-Free Vegan Brownies with Raw Banana Flour

These fudgy gluten-free vegan brownies are made with raw banana flour, homemade applesauce and flaxseed gel, without eggs or wheat flour. They have a dense, moist texture, a soft fudgy centre and a rich chocolate-coffee flavour.

Raw banana flour behaves differently from wheat flour, so accurate measurements and proper cooling matter. If your brownies do not turn out as expected, resist the temptation to change several ingredients at once. First, examine the texture of a fully cooled brownie. The crumb can help you decide what to check next.

What Makes These Brownies Fudgy?

The texture depends on the balance between moisture and structure. Each ingredient has a role:

• Raw banana flour provides the flour base and structure.
• Homemade applesauce adds moisture.
• Flaxseed gel helps bind the mixture in place of eggs.
• Oil contributes richness and tenderness.
• Brown sugar adds sweetness and contributes to moisture retention.
• Coffee powder deepens the chocolate flavour.
• Walnuts and chocolate chips add texture and flavour.

Raw banana flour is not interchangeable with every other gluten-free flour on a gram-for-gram basis. For your first batch, follow the quantities as written.

You can explore more ideas in my gluten-free recipes collection and learn more about working with alternative flours in my gluten-free baking guide.

Before You Begin

Prepare the applesauce. Peel and chop 250 g of apples. Cook them with a little water until soft, then blend until smooth. Allow the applesauce to cool before weighing out 160 g. If you have less than the required amount, prepare more apples rather than adding an unmeasured quantity of water.

Make the flaxseed gel. Mix 15 g of flaxseed powder with 6 tablespoons of water. Leave it for 10 minutes to hydrate.

Prepare the pan and oven. Grease and line an 8 × 4-inch loaf pan. Preheat the oven to 180°C. If your oven tends to run hot or gives inconsistent results, an oven thermometer can help you check its actual temperature.

Fudgy Gluten-Free Vegan Brownies: Full Recipe

Preparation: Prepare the applesauce and flaxseed gel in advance
Pan: 8 × 4-inch loaf pan
Oven temperature: 180°C
Baking time: 55–60 minutes in my tested batch

Ingredients

Method

1. Prepare the wet mixture.

Make sure the applesauce has cooled. Combine it with the prepared flaxseed gel, oil, coffee powder, brown sugar and vinegar. Whisk on low speed for 2 minutes.

2. Add the dry ingredients.

Sift the raw banana flour, baking soda and salt together. Add them to the wet mixture and combine until no dry flour remains.

3. Add the walnuts.

Reserve a small portion of the measured 50 g walnuts for the topping, if desired. Fold the rest into the batter. This keeps the total walnut quantity consistent with the ingredients list.

4. Rest the batter.

Leave the batter to rest for 10 minutes before baking.

5. Bake.

Transfer the batter to the prepared loaf pan. Scatter the 30 g chocolate chips and reserved walnuts over the top, if using. Bake on the centre rack at 180°C for 55–60 minutes.

This timing comes from my tested batch. If your result differs, check your oven’s actual temperature and the baking time before changing the ingredient quantities.

6. Cool before slicing.

Leave the brownies in the pan for 30 minutes. Remove them from the pan and allow them to cool for another 60 minutes, covered with a clean cloth napkin.

These brownies are delicate while warm. Allow them to cool fully before cutting neat slices or judging the final texture.

Troubleshooting Vegan Gluten-Free Brownies

Start with a fully cooled brownie. Use this table to identify the closest match, then follow the relevant checks below.

Symptom after cooling	First check
Dry and crumbly	Flour weight and baking duration
Moist but falls apart when sliced	Cooling time and ingredient measurements
Soft, fudgy centre that holds its shape	Whether this is the intended fudgy texture
Paste-like centre that smears	Actual oven temperature and baking conditions
Oily-looking surface or texture	Oil and applesauce measurements

1. Why Are My Brownies Dry and Crumbly?

First, check the flour measurement and baking time.

If the raw banana flour was weighed incorrectly, the balance between flour and moisture may have changed. Baking longer than intended can also affect the finished texture.

If you measured the flour correctly, check whether your oven was actually at 180°C and whether the brownies remained in the oven longer than intended. Avoid adding extra applesauce or oil to the next batch until you have identified a likely cause. Changing the moisture level without understanding the problem may create a different texture issue.

2. Why Do My Brownies Fall Apart When I Cut Them?

Are they dry, or are they moist but unable to hold their shape?

Dry brownies that break into crumbs call for a review of flour measurement and baking time. Brownies that remain moist but fall apart need a different assessment: check whether they were allowed to cool fully and whether their structure had set before slicing.

If they still cannot hold together after cooling, review the ingredient measurements and baking conditions. Do not automatically add more flaxseed gel or flour. Either change would alter the recipe and needs to be tested before it can be recommended.

3. How Can I Tell Whether the Centre Is Fudgy or Too Gooey?

Does the centre hold together, or does it smear like paste?

A fudgy brownie can have a soft, moist centre and still hold its shape when cut after cooling. A paste-like centre smears and does not hold together in the same way.

My tested batch was ready after 55–60 minutes at 180°C. If your brownies remain paste-like after cooling fully, check the actual oven temperature and the time baked.

A paste-like centre alone does not prove that the brownies are underbaked. Check the baking conditions and the texture of the rest of the brownie before deciding whether the baking time needs to change.

4. Why Do My Brownies Look or Feel Oily?

Were the oil and applesauce measured accurately?

Check the two quantities first: 70 g oil and 160 g cooled applesauce. Also review whether any other ingredient was added in a different quantity.

If the measurements were correct, the appearance alone is not enough to establish why the brownies look oily. Review how the mixture was prepared and how the brownies behaved after cooling.

I would not recommend reducing the oil or adding extra flour on appearance alone. Either adjustment changes the formula, and the result would need to be tested before the change could be recommended confidently.

For more guidance on diagnosing egg-free baking problems, see my eggless baking guide.

Frequently Asked Questions

Can I replace raw banana flour with another gluten-free flour?

Not gram for gram without testing. Different gluten-free flours absorb moisture and contribute structure differently. Follow the recipe as written for the first batch, then test substitutions separately if you wish to experiment.

Can I make these brownies without flaxseed?

Flaxseed gel is part of this recipe’s binding system. Removing it may affect how well the brownies hold together. I would not recommend omitting it without testing a suitable replacement.

How do I know when the brownies are ready?

My tested batch baked at 180°C for 55–60 minutes. Ovens vary, so use this as a reference rather than a universal rule. Allow the brownies to cool fully before assessing their texture. See “How Can I Tell Whether the Centre Is Fudgy or Too Gooey?” in the troubleshooting section for guidance.

Should I cut the brownies while they are warm?

No. Allow them to cool fully before slicing. Warm brownies are more delicate, and cutting them too soon can make it difficult to judge their final texture.

How Should You Store These Brownies?

Allow the brownies to cool completely before storing them in an airtight container.

In my own observation, this batch kept well for 3 days at room temperature and 7 days in the refrigerator. These are observations from my batch, not guaranteed shelf-life periods. Storage conditions, humidity and kitchen temperature can affect how long brownies remain in good condition.

In a warm or humid kitchen, refrigeration is the more cautious option. If you prefer a softer texture, let refrigerated brownies come to a comfortable eating temperature before serving. Discard them if you notice mould, an unusual smell or other signs of spoilage.

Final Thoughts

When troubleshooting gluten-free vegan brownies, start by observing their texture after cooling. Identify what needs checking before changing any ingredient or baking condition.

As I remind my students, understand the problem before changing the recipe.

Happy baking!

Sharmila Sengupta | Baking Expert & Educator | 25+ Years of Baking Experience