Miso Walnut Loaf
A quick bread that balances the savory funk of white miso with toasted walnuts and a hint of maple. The miso dissolves into the batter, creating pockets of umami that deepen as the loaf cools. Best sliced thin and toasted with butter.
- Difficulty
- Easy
- Total time
- 1 hr 15 min
- Hands-on
- 20 min
- Serves
- 8
Ingredients
- 1½ cups all-purpose flour
- 1 tsp baking powder
- ½ tsp baking soda
- ½ tsp salt
- 1 cup walnuts, toasted and chopped
- 2 large eggs
- ⅓ cup white miso paste
- ⅓ cup maple syrup
- ½ cup whole milk
- ⅓ cup neutral oil
- 1 tsp vanilla extract
Step by step
Toast the walnuts
Spread walnuts on a sheet pan and bake at 350°F for 8-10 minutes, shaking once halfway. They should smell intensely nutty and look one shade darker. Let them cool completely, then chop rough.
Prep the pan and oven
Heat oven to 350°F. Grease the loaf pan with butter or oil, then line the bottom and long sides with parchment, leaving overhang for easy removal.
Mix dry ingredients
Whisk flour, baking powder, baking soda, and salt in a bowl. Toss in the chopped walnuts and stir to coat them in flour — this keeps them from sinking.
Whisk wet ingredients with miso
In a separate bowl, whisk eggs until broken up. Add miso paste and whisk hard until completely smooth — no streaks, no clumps. This takes effort. Add maple syrup, milk, oil, and vanilla. Whisk until uniform.
Combine wet and dry
Pour wet ingredients into the flour bowl. Fold with a spatula just until no dry flour remains. The batter will be thick and slightly lumpy. A few streaks of flour are fine — they'll hydrate as it bakes.
Bake
Scrape batter into the prepared pan and smooth the top. Bake 50-55 minutes, until the top is deeply golden and a skewer inserted in the center comes out with just a few moist crumbs. The edges will pull away from the pan.
Cool completely
Let the loaf cool in the pan for 15 minutes, then use the parchment overhang to lift it onto a rack. Cool at least 45 minutes before slicing — warm, the crumb is fragile. The flavor deepens after a day.
Questions people ask
Can I use red miso instead of white?
You can, but the loaf will taste much saltier and more fermented. If you do, cut the amount to 3 tablespoons and increase the maple syrup slightly to balance.
Why is my loaf dense and gummy?
Overmixing once the flour goes in. Mix just until the dry ingredients disappear. Also check your baking powder — if it's old, the loaf won't rise properly.
Can I substitute the walnuts?
Pecans work well. Almonds are fine but lack the slight bitterness that plays with miso. Skip the nuts entirely if needed — the loaf will be softer but still work.
Do I really need to toast the walnuts?
Yes. Raw walnuts taste flat and can add a faintly soapy note. Toasting unlocks their oils and adds a roasted depth that holds up to the miso.
Tips
- The loaf keeps wrapped at room temperature for 3 days, refrigerated for a week, frozen for 3 months
- If the top browns too fast, tent it loosely with foil after 35 minutes
- Slice thin — ½ inch — and toast in a dry skillet until the edges crisp
- White miso varies in salt content; taste your batter before baking and adjust with a pinch more salt if needed
- Day-old slices make excellent bases for avocado, ricotta, or cream cheese
Variations
- Black sesame miso loaf: Replace half the walnuts with toasted black sesame seeds. Add them with the dry ingredients. The loaf turns gray-speckled and takes on a nutty-bitter edge.
- Miso tahini swirl: Mix 3 tablespoons tahini with 1 tablespoon miso and 1 tablespoon maple syrup. Pour half the batter into the pan, drizzle the tahini mixture over, add remaining batter, then swirl with a knife.
- Savory miso scallion loaf: Cut maple syrup to 2 tablespoons. Omit vanilla. Fold in ½ cup thinly sliced scallions and 2 tablespoons white sesame seeds with the walnuts. Serve with soup.
More quick breads: Japanese baking, American quick breads and spice drawer triage.