Miso Banana Bread Recipe: Savory-Sweet Loaf with Umami

This miso banana bread puts an Asian twist on classic banana loaf: moist and tender with bright banana flavor and a subtle umami note from miso. It works beautifully for breakfast or brunch and is equally satisfying as a snack or dessert.

We love banana bread—there was even a month when I had a thick slice every morning! Here’s our simple miso banana bread recipe. The miso is gentle rather than overpowering, contributing a balanced savory depth that enhances the overall flavor. It’s honestly irresistible.

Ingredients

• All-purpose flour – Use all-purpose flour for the best texture in quick breads. Cake flour is too weak and bread flour is too strong.
• Overripe bananas – The riper the bananas, the more natural sweetness and moisture they contribute. They boost banana flavor and aroma.
• White or yellow miso – Choose light miso for a milder, less salty flavor that blends well in baked goods.
• Unsalted butter – Adds richness and moisture. Use unsalted so you can control the salt level.
• Brown sugar – Light or dark brown sugar both work; they add moisture, flavor, and a warm color.
• Whole eggs – Eggs provide structure, moisture, and tenderness.
• Baking soda and baking powder – Both act as leaveners for this quick bread.
• Ground cinnamon and vanilla extract (optional) – For extra warmth and aroma.

Freeze overripe bananas

Freezing overripe bananas is a great way to save them for later baking. Peel very ripe bananas, place them in airtight containers or freezer bags, and store in the freezer for months.

To use, thaw the bananas in the fridge overnight, at room temperature, or briefly in the microwave. Drain any excess juice before measuring and mashing—the thawed bananas will yield a very moist loaf.

Baking soda substitution

If you need to substitute baking soda, baking powder is the closest option. Baking powder will still leaven the loaf but won’t neutralize acidity the same way baking soda does, and the crumb may brown less.

If color and slight flavor differences aren’t a concern, substitute 1 teaspoon baking powder for 1 teaspoon baking soda. Results may vary slightly.

How to make miso banana bread

Prepare the batter:

1. Preheat the oven to 350°F (175°C). Lightly grease a 9×4-inch loaf pan with butter or oil.

2. In a small bowl, whisk together 1 3/4 cups all-purpose flour, 1 teaspoon baking soda, 1 teaspoon baking powder, and 1 teaspoon ground cinnamon (optional). Set aside.

3. In a large bowl, use a hand mixer to cream 1 stick (113 g) softened unsalted butter with 3 tablespoons white miso paste until smooth.

4. Add 3/4 cup packed brown sugar and cream on medium-low until combined, then increase to medium-high and beat until lighter and fluffy, about 2–3 minutes. Scrape the bowl as needed.

5. Add 2 large eggs and 1 teaspoon vanilla (optional). Mix until incorporated.

6. Add 2 cups mashed overripe bananas (about 4–5 medium bananas) and mix on medium speed until combined. The batter may look a little broken—this is normal.

7. Fold in the flour mixture gently with a rubber spatula until no dry streaks remain. Do not overmix.

Bake the banana bread:

8. Pour the batter into the prepared loaf pan and smooth the top. Optionally split a ripe banana lengthwise and lay it on top for decoration.

9. Bake 60–70 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs. If the top browns too quickly, tent with foil for the last 15–20 minutes.

10. Remove from the oven and cool in the pan until it’s comfortable to handle. Turn the loaf out, then cool completely or until just warm before slicing.

Additional toppings

The loaf is delicious as-is, but you can fold in about 1/2 cup of optional add-ins after mixing in the flour:

• Chocolate chips
• Chopped nuts (walnuts, pecans)
• Rolled oats
• Dried berries (raisins, dried blueberries, cranberries)

Recipe Tips

• Use overripe bananas. They deliver the best sweetness, moisture, and banana flavor.
• Choose white or yellow miso. Light miso adds umami without overwhelming the loaf.
• Freeze extra ripe bananas. Thawed bananas work great and keep for months in the freezer.
• Don’t overmix. Mixing too long develops gluten and yields a tough loaf.
• Grease the pan lightly. Even nonstick pans benefit from a light coating to ensure easy release.
• Use an oven thermometer. Ovens vary—confirm your temperature for best results.
• Tent with foil if needed. Cover the loaf in the final 15–20 minutes to prevent excessive browning.

Storage

Store the loaf whole or pre-sliced in an airtight container in the refrigerator for up to 7 days. For longer storage, slice, wrap individual pieces, and freeze for up to 2 months.

Thaw slices in the fridge overnight or at room temperature for a few hours. Warm briefly in the microwave before serving for the best texture and aroma.

Frequently Asked Questions

If you make this recipe, please tag us on Instagram with #twoplaidaprons or mention @two_plaid_aprons — we’d love to see your photos!

Miso Banana Bread