This Double Chocolate Banana Bread is deeply chocolatey, moist, and rich in every slice! It has dark cocoa powder baked throughout the batter and dark chocolate chips folded in for gooey pockets of chocolate in every bite! Brown butter adds a nutty, toffee-like depth that plain melted butter cannot replicate, and maple syrup sweetens the whole loaf with no refined sugar at all. The recipe is gluten free natively, comes together in one bowl, and bakes in 40 to 45 minutes.

Double chocolate banana bread.

The ripe banana carries the sweetness in this recipe. With only four tablespoons of maple syrup in the entire loaf, the banana is doing most of the sweetening work. This is why very ripe, brown-spotted bananas are not just recommended but essential here. A banana that is still yellow contributes very little sweetness and the loaf will taste bitter from the cocoa powder without enough natural sugar to balance it.

What Makes This Double Chocolate Banana Bread Different?

This Double Chocolate Banana Bread uses three elements that most competing recipes skip. First, the butter browns before going into the batter, adding nutty, toffee-like flavor compounds that deepen the dark cocoa.

Second, only four tablespoons of maple syrup sweeten the loaf, making the banana the primary sweetener with no refined sugar added. Third, the recipe uses gluten free flour natively, not as a footnote substitution.

Ingredients

  • 1 1/2 cups mashed ripe bananas
  • 1/3 cup salted butter, browned or melted
  • 4 tbsp pure maple syrup or honey
  • 1 egg
  • 1 3/4 cups gluten free flour, see note
  • 1/4 cup dark cocoa powder
  • 1 cup dark chocolate chips

What Each Ingredient Does

Brown butter

Browning the butter adds nutty, toasty flavor compounds that plain melted butter does not contain. In a loaf built on dark cocoa and ripe banana, those compounds deepen both flavors noticeably. Cook over medium heat until golden caramel and toasted-smelling, then cool a few minutes before mixing. Plain melted butter works as a substitute when time is short.

Ripe bananas

Use bananas with heavy brown spotting or that are nearly fully brown. In a recipe with only four tablespoons of added sweetener, the banana carries the majority of the sweetness. The riper the banana, the more its starch has converted to sugar. One and a half cups comes from about three medium bananas.

Slice of double chocolate banana bread.

Maple syrup and dark chocolate

Four tablespoons of pure maple syrup sweetens the loaf with no refined sugar. Because the banana provides primary sweetness, only a small amount of added sweetener is needed to balance the dark cocoa. Honey substitutes at the same amount.

One quarter cup of dark cocoa powder saturates the batter with deep chocolate flavor, and one cup of dark chocolate chips folds in to create gooey pockets of chocolate in every bite. High-quality dark chips make a noticeable difference in this simple batter.

Gluten free flour

One and three-quarters cups of a 1:1 gluten free baking blend holds the loaf together through the bake time. All-purpose flour substitutes directly at the same amount.

How to make Double Chocolate Banana Bread, step by step

First, preheat your oven to 350 degrees Fahrenheit. Line a standard bread pan with parchment paper.

In a mixing bowl, combine the mashed bananas, browned butter, maple syrup, and egg. Stir together.

Then, add in the flour and cocoa powder. Stir to combine.

Dark loaf batter.

Fold in the chocolate chips.

Double chocolate chip batter.

Transfer to the lined pan. Smooth into an even layer.

Loaf pan with cocoa batter.

Bake for 40 to 45 minutes, or until a toothpick inserted comes out with only a few moist crumbs.

Melty chocolate chips in pan.

Finally, remove from the oven. Cool fully before slicing.

Why the Banana Is the Real Sweetener Here

Most double chocolate banana bread recipes use 3/4 to 1 cup of sugar in addition to the bananas. This recipe uses only four tablespoons of maple syrup because the ripe banana carries almost all the sweetness.

A very ripe banana contains far more simple sugars than an underripe one, and one and a half cups of fully ripe mashed banana provides enough natural sweetness to balance a full quarter cup of dark cocoa powder. A yellow banana leaves the loaf tasting bitter and flat, which is why extra-ripe bananas are non-negotiable here.

Tips for the Best Result

Use the ripest bananas you can find

Brown-spotted or nearly fully brown bananas are essential, not just preferred. The banana provides primary sweetness here and an underripe one leaves the loaf bitter from the cocoa.

Cool the brown butter before mixing

Hot brown butter can partially cook the egg. Allow it to cool for at least 5 minutes until warm but not steaming before mixing.

Do not overmix once the flour goes in

Stir until no dry streaks remain, then stop. The batter should look thick and slightly rough, not smooth.

Start checking at 40 minutes

The banana and maple syrup provide more natural moisture than a sugar-heavy batter, making this loaf bake faster. Pull it as soon as the toothpick shows moist crumbs.

Sliced chocolate bread.

Substitutions

OriginalSubstituteNotes
Gluten free flourAll-purpose flour (same amount)Direct swap
Maple syrupHoney (same amount)More floral sweetness, same texture effect
Brown butterPlain melted butterLess complex flavor, still delicious
Dark cocoa powderRegular unsweetened cocoa powderLighter, less intense chocolate flavor
Dark chocolate chipsSemi-sweet or dairy-free chipsSlightly sweeter, or makes loaf dairy free
Salted butterUnsalted butter + small pinch of saltSame result

Storage

Room temperature: Store in an airtight container for up to 3 days.

Freezer: Slice, wrap tightly, and freeze for up to 3 months. Thaw at room temperature for 20 to 30 minutes before eating.

Frequently Asked Questions

Do I have to brown the butter?

No. Plain melted butter produces a delicious loaf. Browning adds nutty, toffee-like depth that pairs especially well with dark cocoa powder and takes about 5 to 7 extra minutes.

Why does my loaf taste bitter?

The most likely cause is underripe bananas. The banana is the primary sweetener here, and an underripe one lacks enough converted sugar to balance the dark cocoa. Use very ripe, heavily brown-spotted bananas.

Can I add more maple syrup for a sweeter loaf?

Yes. Up to two additional tablespoons (six total) makes a noticeably sweeter loaf without affecting texture. Beyond that the batter becomes too wet for the current flour ratio.

Can I use regular cocoa powder instead of dark cocoa?

Yes. Regular unsweetened cocoa substitutes at the same amount for a lighter, less intense chocolate flavor. Dark or Dutch-process cocoa produces the deepest result.

Cocoa loaf slice.

You May Also Like

If you make this Double Chocolate Banana Bread recipe, I would really appreciate a review! You can find me on Instagram, Facebook, and Pinterest. Join my exclusive Facebook Group for a behind the scenes look. I would love for you to follow along! For more ideas, check out these Dessert Recipes.

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Double chocolate banana bread.

Get the Recipe: Double Chocolate Banana Bread

Dense, moist, and deeply chocolatey in every single slice. Brown butter adds a nutty richness that makes the chocolate flavor taste more complex, and gooey dark chocolate chips melt throughout every bite from edge to edge.
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Ingredients

Instructions 

  • First, preheat your oven to 350 degrees Fahrenheit. Line a standard bread pan with parchment paper.
  • In a mixing bowl, combine the mashed bananas, browned butter, maple syrup, and egg. Stir together.
  • Then, add in the flour and cocoa powder. Stir to combine.
  • Fold in the chocolate chips.
  • Transfer to the lined pan. Smooth into an even layer.
  • Bake for 40 to 45 minutes, or until a toothpick inserted comes out with only a few moist crumbs.
  • Finally, remove from the oven. Cool fully before slicing.

Notes

  • If you are not gluten free, feel free to use all purpose flour.
  • I highly recommend browning your butter. It adds the best flavor. If you are short on time, melted butter works too.
  • Do not bake too long. The bread is done when a toothpick inserted comes out with only a few moist crumbs.
  • Allow the bread to cool before slicing.
  • Store leftovers in an airtight container for up to 3 days at room temperature.
Calories: 326kcal, Carbohydrates: 47g, Protein: 4g, Fat: 16g, Saturated Fat: 10g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 2g, Trans Fat: 0.3g, Cholesterol: 41mg, Sodium: 70mg, Potassium: 174mg, Fiber: 6g, Sugar: 10g, Vitamin A: 284IU, Vitamin C: 2mg, Calcium: 39mg, Iron: 3mg