# Brown Butter Banana Walnut Loaf with Cinnamon
A compact, moist banana walnut loaf enhanced with nutty brown butter and warm cinnamon, baked to perfection in the air fryer.
- Servings: 4
- Time: 45 minutes
- Difficulty: Easy
- Confidence: high
- Equipment: Air fryer, Grill, Microwave, No-cook, Oven, Pressure cooker, Stovetop
- Generated for: brown butter banana walnut loaf with cinnamon
- HTML: https://recipeasy.me/recipe/brown-butter-banana-walnut-loaf-with-cinnamon-49df7f66
- Published: 2026-07-29T09:00:35.870Z
## Prep notes
- Preheat air fryer to 160°C (320°F).
- Grease and line a small 1 lb (approx 8x4 inch) loaf pan that fits comfortably inside your air fryer basket without touching the sides.

## Ingredients
- 60 g unsalted butter (melted and browned)
- 180 g very ripe medium bananas (peeled and thoroughly mashed)
- 100 g brown sugar (packed)
- 50 g egg (lightly beaten)
- 150 g all-purpose flour (spooned and leveled)
- 3 g baking soda (leavening)
- 2.6 g ground cinnamon (aromatic spice)
- 2 g salt (enhancer)
- 50 g walnuts (chopped, divided)

## Method
1. **Brown Butter**
  - **Brown butter:** Melt butter in a small saucepan over medium heat, swirling until it foams, turns golden-amber, and develops a nutty aroma. · 115°C / 240°F · 3-5 minutes · Look for: Deep golden color and nutty fragrance

2. **Wet Base**
  - **Mash bananas:** Mash peeled bananas in a medium bowl until smooth with a few small rustic lumps remaining. · Look for: Soft, pulpy consistency
  - **Whisk sugar:** Whisk the brown sugar into the mashed bananas until fully incorporated.
  - **Blend wet:** Whisk in the cooled brown butter and the beaten egg until smooth.

3. **Dry Mix**
  - **Whisk dry:** In a separate bowl, whisk together the flour, baking soda, cinnamon, and salt.
  - **Add walnuts:** Toss most of the chopped walnuts into the dry mixture, reserving a small handful for the top.

4. **Combine**
  - **Fold batter:** Gently fold the dry ingredients into the wet mixture using a spatula just until moistened and no dry streaks remain. Do not overmix. · Look for: Batter is thick and just combined with no visible dry flour

5. **Air Fry**
  - **Bake loaf:** Pour batter into the prepared loaf pan, sprinkle remaining walnuts on top, tent loosely with foil if browning too fast, and air fry. · 160°C / 320°F · 35-45 minutes · Look for: Skewer inserted into center comes out clean or with a few dry crumbs; internal temp reaches 95-96°C (203-205°F)

6. **Cool & Serve**
  - **Cool and slice:** Let the loaf cool in the pan for 10-15 minutes to set its crumb structure, then transfer to a wire rack to cool completely before slicing. · 15 minutes · Look for: Loaf is room temperature and firm to the touch

## Why it works
Browning the butter drives off water and toasts milk solids for a deep caramel flavor that complements the sweet banana. Mixing the batter just until combined prevents gluten over-development, ensuring a tender crumb rather than a tough texture.

## Failure modes
- Overmixing the batter: Fold ingredients gently with a spatula only until flour disappears to avoid a dense, rubbery texture.
- Top browning too quickly in the air fryer: Tent the small loaf pan loosely with aluminum foil halfway through the bake time to prevent burning before the center sets.

## Sources
- [Air Fryer Banana Bread - Love and Others Spices](https://www.loveandotherspices.com/air-fryer-banana-bread/) — Provided a compact small-loaf formula, cinnamon and walnut use, foil-tenting to prevent overbrowning, and 325°F/40 min plus lower-temp finishing guidance.
- [Air Fryer Banana Bread - The Country Cook](https://www.thecountrycook.net/air-fryer-banana-bread/) — Gave a mini-loaf air-fryer method, banana/sugar/fat ratio, and the clean-toothpick doneness cue.
- [Air Fryer Banana Bread - Something Sweet Something Savoury](https://somethingsweetsomethingsavoury.com/air-fryer-banana-bread-recipe/) — Supplied a 1 lb loaf-tin approach, brown sugar, walnuts, cinnamon, just-combined mixing guidance, and 160°C/35 min-style bake timing.
- [Banana Bread in the Air Fryer: How to Bake a Proper Loaf in a 1lb Tin - Wrenbury](https://wrenbury.co.uk/blog/banana-bread-in-the-air-fryer-how-to-bake-a-proper-loaf-in-a-1lb-tin/) — Contributed a concise loaf-tin formula, two-thirds-full fill rule, foil-tenting advice, and cooling time before slicing.
- [Air Fryer Banana Bread - Airfryertime.com](https://www.airfryertime.com/air-fryer-banana-bread) — Added an internal-temperature doneness target of 94–96°C (202–206°F) and a standard air-fryer timing/temperature reference.
- [The BEST BANANA BREAD in an AIR FRYER | easy recipe - YouTube](https://www.youtube.com/watch?v=e2IW2JzaJu0) — Provided a corroborating air-fryer bake schedule and internal-temperature target around 205°F/96°C, useful for doneness confirmation.

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