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Moist Banana Walnut Bread Recipe With Toasted Walnuts

Golden banana walnut bread recipe loaf sliced on a wooden board with toasted walnuts on top

Banana walnut bread recipe: a moist, cinnamon-scented loaf with toasted walnuts, ready in 75 minutes. Bake a warm, fudgy loaf yourself today!

Claire Whitmore

Claire Whitmore

Author

8 min read
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This banana walnut bread recipe fills your kitchen with cinnamon-scented warmth in about 75 minutes. Expect a velvety, moist loaf with toasted walnuts folded through and crunchy nuts crowning the top.


Why This Recipe Works

Mash bananas with a few lumps intentionally: Those tiny soft lumps hold pockets of concentrated banana flavour. A smooth purée can turn the crumb gummy and flat.

Melted butter gives a tighter, fudgier crumb: Liquid butter coats the flour evenly and sets as the loaf bakes. The result is a dense, tender slice rather than an airy one.

Sour cream and baking soda react for lift: The sour cream's acidity activates the baking soda, producing bubbles that raise the loaf. It also softens the crumb.

Fold dry ingredients gently, stopping early: Overmixing builds gluten, which toughens the bread. Stop as soon as no streaks of flour remain.

Ingredients You'll Need

Ripe Bananas: These are the heart of the loaf, giving it natural sweetness and moisture. Look for skins speckled brown, since that's when the flavor is deepest. Unsweetened applesauce works in a pinch, but the loaf will taste milder.

Unsalted Butter: Melted butter gives this bread its rich, tender crumb. Using unsalted lets the sea salt control the seasoning. Refined coconut oil or neutral oil, in the same amount, is a fine swap, though the crumb will be a little less rich.

Granulated Sugar: Sugar sweetens the batter and helps the top turn a deep golden brown. It also keeps the crumb soft. Packed light brown sugar, measured the same, adds a caramel note I really love.

Large Egg: The egg binds everything and gives the loaf its structure. Bring it to room temperature so it blends smoothly into the warm butter. A flax egg (1 tablespoon ground flaxseed and 3 tablespoons water, rested 5 minutes) works, though the slice may be more delicate.

Sour Cream: Sour cream adds gentle tang and a plush, moist texture. Its acidity also reacts with the baking soda to help the loaf rise. Plain full-fat Greek yogurt, same amount, gives you nearly the same result.

Vanilla Extract: Vanilla rounds out the bananas and cinnamon with warm, sweet depth. A little goes a long way, so measure carefully. Vanilla bean paste, same amount, is a lovely swap and adds tiny visible specks.

All-Purpose Flour: Flour gives the loaf its shape and structure. Spoon it into the cup and level it off so you don't pack in too much. A 1-to-1 gluten-free all-purpose blend with xanthan gum works, though the crumb may be slightly more tender.

Baking Soda: Baking soda is the lift behind this loaf. Check that yours is fresh, because old soda leaves a flat, slightly metallic taste. If you only have baking powder, use about 1½ teaspoons, though the rise and flavor will shift a bit.

Fine Sea Salt: Salt sharpens the sweetness of the bananas and makes the cinnamon pop. Without it, the bread can taste flat. Table salt, in the same amount, is an easy swap.

Ground Cinnamon: Cinnamon adds warm, sweet spice that pairs beautifully with banana. It makes your kitchen smell like a cozy morning. Ground nutmeg or allspice works in a pinch, but use a light hand since both are stronger.

Walnuts: Walnuts bring buttery crunch and a slightly earthy edge that balances the sweetness. Toast them first to deepen their flavor and keep them crisp in the loaf. Pecans, same amount, make a softer, sweeter alternative.

Peeled ripe bananas, melted butter, granulated sugar, and a large egg arranged on a wooden board Sour cream, vanilla extract, all-purpose flour, and baking soda arranged on a wooden board Fine sea salt, ground cinnamon, and toasted chopped walnuts arranged on a wooden board

Ingredients You'll Need

Mash the bananas, whisk the wet ingredients, gently fold in the dry, then bake in a loaf pan. Even if you've never baked a quick bread, this batter forgives small slips and rewards you with a golden loaf.

ingredients for banana walnut bread measured into small bowls
  1. Toast the walnut halves on a rimmed baking sheet at 350°F / 175°C until fragrant and deep golden-brown, 7-9 minutes. Watch them closely so they don't scorch.
Toasted walnut halves spread on a light baking sheet, golden-brown and fragrant.
  1. Mash the 3 ripe bananas in a bowl with a fork until mostly smooth with a few soft lumps, 2-3 minutes at room temperature (70°F / 21°C). You want about 1 cup.
Ripe bananas mashed with a fork in a glass bowl, soft and lightly lumpy.
  1. Whisk the melted butter and granulated sugar until glossy and combined, about 1 minute at room temperature (70°F / 21°C).
Melted butter whisked with sugar in a glass bowl, glossy and smooth.
  1. Whisk in the egg, sour cream and vanilla until smooth and creamy, about 1 minute at room temperature (70°F / 21°C). The egg should be at room temperature.
Smooth creamy batter in a glass bowl with egg, sour cream and vanilla whisked in.
  1. Stir the mashed bananas into the wet mixture until evenly blended, about 1 minute at room temperature (70°F / 21°C).
Creamy batter in a glass bowl with mashed banana evenly stirred through.
  1. Fold the flour, baking soda, fine sea salt and cinnamon into the batter until just combined, 30-45 seconds at room temperature (70°F / 21°C).
Thick cinnamon-speckled banana batter in a glass bowl, smooth and uniform.
  1. Fold ¾ cup chopped toasted walnuts into the thick batter until evenly distributed, 20-30 seconds at room temperature (70°F / 21°C).
Thick banana batter in a glass bowl studded with chopped toasted walnut pieces.
  1. Spread the batter evenly into a greased 9x5-inch loaf pan, then scatter ¼ cup chopped walnuts over the top, about 2 minutes at room temperature (70°F / 21°C).
Batter spread in a greased loaf pan topped with chopped walnut pieces.
  1. Bake the loaf on the center rack until deep golden-brown on top and a toothpick inserted in the center comes out clean, 55-65 minutes at 350°F / 175°C.
Golden-brown baked banana walnut loaf in a metal pan, walnuts scattered on top.
Wrap cooled loaves tightly in plastic and store them at room temperature for up to three days. For longer keeping, slice the loaf first, freeze the pieces, and toast them straight from frozen.

Serving size: 1 portion · Calories: 240 · Total Fat: 12g · Saturated Fat: 5g · Carbs: 31g · Fiber: 2g · Sugar: 18g · Protein: 4g · Sodium: 180mg

Tips and Tricks

  • Equipment: Use a 9x5-inch loaf pan: This exact size gives the batter room to rise into a tall, even loaf. A smaller pan can overflow in the oven. Grease it well first.
Banana walnut batter spread evenly in a greased 9x5-inch loaf pan with walnuts on top
  • Temperature precision: Keep the oven at 350°F / 175°C: Heat the oven before you start mixing, and bake on the center rack. Too hot, and the top browns before the middle sets.
  • Common mistake: Opening the oven door too early: Peeking in the first 30 minutes lets heat escape. The middle can sink. Leave the loaf alone until the top looks deep golden-brown.
  • Flavour upgrade: Add a pinch of ground nutmeg: A small pinch alongside the cinnamon adds warm, nutty depth. It pairs beautifully with toasted walnuts without overpowering the banana.
  • Texture tip: Cool in the pan for 10 minutes: Then lift the loaf onto a wire rack. This sets the crumb so slices stay moist and tender, and the walnut-studded top stays crisp.
Sliced banana walnut bread on a wire rack showing moist crumb with walnut pieces

Frequently Asked Questions

Can I swap the butter or egg to make this banana walnut bread dairy-free or egg-free?

Replace the ½ cup melted butter with ½ cup melted coconut oil or neutral oil, and swap the sour cream for ¼ cup plain unsweetened non-dairy yogurt. For an egg, use 1 tablespoon ground flaxseed mixed with 3 tablespoons water, rested 5 minutes.

Does this banana walnut bread keep in the fridge, and how do I warm it?

Keep the wrapped loaf in the refrigerator for up to 5 days, though it dries out faster than at room temperature. To warm a chilled slice, microwave it for 15-20 seconds, or heat it at 300°F / 150°C for 6-8 minutes.

Why do my walnuts sink to the bottom of the loaf?

Toss the ¾ cup chopped walnuts with a spoonful of the measured flour before folding them in, so they cling to the batter. Look for a thick batter that holds its shape on the spoon, not a loose, pourable one.

What to Serve With This

  • Sharp Cheddar Cubes: Salty, tangy cheese cuts through the bread's sweetness and gives every bite a savory edge.
  • Tart Green Apple Slices: Crisp, juicy apple bites add crunch against the soft, fudgy crumb.
  • Lemon-Zested Greek Yogurt: Cool, tangy yogurt brightens the buttery loaf and balances its richness.
  • Fresh Orange Segments: Bright citrus lifts the cinnamon and banana flavours so the slice never feels heavy.
Banana walnut bread plated with cheddar cubes, green apple slices and Greek yogurt

Moist Banana Walnut Bread Recipe With Toasted Walnuts

Breakfast / American

Prep
15 min
Cook
1 h
Total
1 h 15 min
Servings
10
Calories
240 kcal

Ingredients

  • 3 ripe bananas (about 1 cup mashed), peeled
  • ½ cup (1 stick) unsalted butter, melted
  • ¾ cup granulated sugar
  • 1 large egg, at room temperature
  • ¼ cup sour cream
  • 1 teaspoon vanilla extract
  • 1½ cups all-purpose flour
  • 1 teaspoon baking soda
  • ½ teaspoon fine sea salt
  • ½ teaspoon ground cinnamon
  • 1 cup walnut halves, toasted and chopped, with ¾ cup folded into the batter and ¼ cup sprinkled on top

Instructions

  1. Toast the walnut halves on a rimmed baking sheet at 350°F / 175°C until fragrant and deep golden-brown, 7-9 minutes. Watch them closely so they don't scorch.
  2. Mash the 3 ripe bananas in a bowl with a fork until mostly smooth with a few soft lumps, 2-3 minutes at room temperature (70°F / 21°C). You want about 1 cup.
  3. Whisk the melted butter and granulated sugar until glossy and combined, about 1 minute at room temperature (70°F / 21°C).
  4. Whisk in the egg, sour cream and vanilla until smooth and creamy, about 1 minute at room temperature (70°F / 21°C). The egg should be at room temperature.
  5. Stir the mashed bananas into the wet mixture until evenly blended, about 1 minute at room temperature (70°F / 21°C).
  6. Fold the flour, baking soda, fine sea salt and cinnamon into the batter until just combined, 30-45 seconds at room temperature (70°F / 21°C).
  7. Fold ¾ cup chopped toasted walnuts into the thick batter until evenly distributed, 20-30 seconds at room temperature (70°F / 21°C).
  8. Spread the batter evenly into a greased 9x5-inch loaf pan, then scatter ¼ cup chopped walnuts over the top, about 2 minutes at room temperature (70°F / 21°C).
  9. Bake the loaf on the center rack until deep golden-brown on top and a toothpick inserted in the center comes out clean, 55-65 minutes at 350°F / 175°C.

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About the author

Claire Whitmore

Claire Whitmore

Claire moved to a Vermont farm after burning out so badly she could not get out of bed for a month. Now she runs before sunrise and eats pancakes on the porch with a dog who saved her more than she will admit. Mornings are hers again, and she guards them like a life.