DishGal
Find dinner
Oat-topped rectangular loaf of Irish brown soda bread with one slice showing its coarse whole-grain crumb

Photo: O'Dea / Wikimedia Commons · CC BY-SA 4.0

Vegetarian Dinners

Irish Brown Soda Bread with Buttermilk & Oats

Whole-wheat flour, bran and oats make a hearty loaf with a tender buttermilk crumb—no yeast, kneading or rise time required.

Developed for DishGal · Updated 2026-09-18

Vegetarian Dinners
Prep15 min
Cook45 min
Total90 min
Cost$0.48

Directions

  1. Heat the oven and prepare the pan

    Place a rack in the center and heat the oven to 425°F. Butter a 9-by-5-inch metal loaf pan and line the long sides with a parchment sling. Set the pan on a rimmed sheet pan for easier handling.

  2. Combine the dry ingredients

    Whisk the whole-wheat flour, all-purpose flour, bran, 1/4 cup oats, sunflower seeds, sesame seeds, brown sugar, baking soda and salt in a large bowl. Break up every lump of baking soda so the loaf has no bitter pockets.

  3. Mix the buttermilk

    In a separate bowl, whisk the buttermilk, egg and melted butter until uniform. Pour the wet mixture over the dry ingredients and fold with a sturdy spatula for 20 to 30 seconds, just until no dry flour remains. The dough should be thick, sticky and spoonable, not kneadable.

  4. Fill and score the loaf

    Scrape the dough into the prepared pan without compressing it. Smooth the top with a damp spatula, sprinkle with the remaining tablespoon oats and cut a 1/2-inch-deep line lengthwise down the center to control expansion. Transfer immediately to the oven; the soda reaction begins as soon as wet and dry ingredients meet.

  5. Bake at two temperatures

    Bake at 425°F for 15 minutes. Without opening the door, reduce the oven to 375°F and continue baking for 27 to 32 minutes, until the loaf is deeply brown, pulls slightly from the pan and registers 200 to 205°F in the center. If the top darkens too quickly, tent loosely with foil for the final 10 minutes.

  6. Cool before slicing

    Rest the loaf in the pan for 10 minutes, then use the parchment to move it to a rack. Cool for at least 20 more minutes before cutting with a serrated knife. For the neatest crumb, let it cool completely; serve plain or with salted butter.

Why this works

Why it worksButtermilk supplies the acid that activates baking soda immediately, giving the loaf lift without yeast, kneading or proofing.
Why it worksWhole-wheat flour and bran provide hearty flavor, while all-purpose flour and egg keep the crumb cohesive enough for clean slices.
Why it worksAn initial hot bake encourages expansion and crust color; lowering the temperature finishes the center before the oat-topped surface becomes too dark.

Useful kitchen gear

Tools that make this easier.

Compare the function and specifications first; skip anything your kitchen already handles well.

Paid links: As an Amazon Associate I earn from qualifying purchases. You pay no additional cost.
Bowl of vegetables resting on a digital kitchen scale Compare on AmazonDigital kitchen scaleGram weights keep the whole-wheat flour, bran and buttermilk balanced so the quick loaf is hearty without becoming dry.See current options → Stainless-steel mixing bowl and matching strainer bowl Compare on AmazonStainless mixing bowlsSeparate roomy bowls keep the dry mixture and buttermilk mixture organized before the brief final fold.See current options → Two heat-safe oven mitts hanging above kitchen pots and pans Compare on AmazonHeat-safe oven mittsSecure hand protection matters when reducing the oven temperature and removing a hot metal loaf pan and sheet pan.See current options →

Swaps & notes

Easy swaps

  • Replace wheat bran with the same weight of wheat germ or additional whole-wheat flour. Additional flour makes a slightly tighter crumb, so add 1 tablespoon buttermilk if the dough looks dry.
  • Pumpkin seeds or chopped walnuts can replace sunflower seeds by weight. Keep the sesame seeds or omit them without changing the liquid.
  • For a seed-free loaf, omit both seed varieties and add 3 tablespoons extra rolled oats to preserve the hearty texture.

Cook notes

  • Once buttermilk meets baking soda, work promptly. Preheat the oven and prepare the pan before combining wet and dry ingredients.
  • A metal loaf pan conducts enough heat to brown the sides. A glass pan may need 5 additional minutes; rely on the 200 to 205°F internal-temperature cue.
  • The licensed photograph clearly shows an oat-topped rectangular brown soda-bread loaf with a sliced, coarse whole-grain crumb; the recipe matches that form, topping and texture.

Storage

Cool completely before storing. Keep tightly wrapped at room temperature for up to 3 days, or refrigerate for up to 5 days and toast before serving. Freeze the whole loaf or separated slices for up to 2 months. Thaw wrapped at room temperature, then refresh in a 325°F oven for 8 to 10 minutes.

Questions

Can I make Irish soda bread without buttermilk?

Soda bread depends on the reaction between acidic buttermilk and baking soda. Plain milk does not provide enough acid. In a pinch, combine 1 2/3 cups whole milk with 2 tablespoons lemon juice, rest 10 minutes, then measure the amount specified.

Why is my brown soda bread dense?

The dough was likely mixed too long or packed into the cup when measuring flour. Stir only until no dry pockets remain and use the gram weights when possible. The finished crumb is hearty, but it should still slice cleanly without crumbling.

Can I freeze brown soda bread?

Yes. Cool it completely, slice it and freeze the slices in an airtight bag for up to 2 months. Toast slices directly from frozen, or thaw the wrapped loaf at room temperature to limit moisture loss.

Cook next

More recipes you’ll like

All recipes
Irish Brown Soda Bread with Buttermilk & Oats
Screen stays awake when supported.
1. Heat the oven and prepare the panPlace a rack in the center and heat the oven to 425°F. Butter a 9-by-5-inch metal loaf pan and line the long sides with a parchment sling. Set the pan on a rimmed sheet pan for easier handling.
2. Combine the dry ingredientsWhisk the whole-wheat flour, all-purpose flour, bran, 1/4 cup oats, sunflower seeds, sesame seeds, brown sugar, baking soda and salt in a large bowl. Break up every lump of baking soda so the loaf has no bitter pockets.
3. Mix the buttermilkIn a separate bowl, whisk the buttermilk, egg and melted butter until uniform. Pour the wet mixture over the dry ingredients and fold with a sturdy spatula for 20 to 30 seconds, just until no dry flour remains. The dough should be thick, sticky and spoonable, not kneadable.
4. Fill and score the loafScrape the dough into the prepared pan without compressing it. Smooth the top with a damp spatula, sprinkle with the remaining tablespoon oats and cut a 1/2-inch-deep line lengthwise down the center to control expansion. Transfer immediately to the oven; the soda reaction begins as soon as wet and dry ingredients meet.
5. Bake at two temperaturesBake at 425°F for 15 minutes. Without opening the door, reduce the oven to 375°F and continue baking for 27 to 32 minutes, until the loaf is deeply brown, pulls slightly from the pan and registers 200 to 205°F in the center. If the top darkens too quickly, tent loosely with foil for the final 10 minutes.
6. Cool before slicingRest the loaf in the pan for 10 minutes, then use the parchment to move it to a rack. Cool for at least 20 more minutes before cutting with a serrated knife. For the neatest crumb, let it cool completely; serve plain or with salted butter.