Irish Soda Bread Recipe: The Story Behind St. Patrick’s Day’s Favorite Loaf

This traditional bread is delicious for St. Patrick’s or any day, try this easy recipe!

Irish Soda Bread at a Glance

  • Time: 15 minutes hands-on, 50 to 55 minutes in the oven.
  • Yield: one round loaf, about 8 servings.
  • What makes it Irish soda bread: baking soda + buttermilk (soft wheat in the original), no yeast, no rise time.
  • The cross on top: a half-inch X cut into the crown lets the loaf bake evenly and (in folk tradition) lets the fairies out.
  • Authentic vs. Americanized: Irish tradition is plain flour, soda, salt, buttermilk. Caraway, raisins, and an egg-yolk wash are the U.S. add-ins.
Round Irish soda bread loaf with deep X cross on top, golden crust, cooling on a wire rack beside a dish of Irish butter and a tin of buttermilk on a wooden farmhouse table
A traditional Irish soda bread loaf, golden-crusted with the deep X cut into the top that lets it bake evenly (and, says the lore, lets the fairies out).

Irish soda bread is almost certainly the simplest yeast-free loaf you will ever bake, and it owes its place on the St. Patrick’s Day table to a quirk of chemistry, not to Saint Patrick himself. The Saint walked the Emerald Isle in the fifth century. This bread did not exist until the late 1830s, when baking soda (sodium bicarbonate) was introduced as a chemical leavener in the United Kingdom. Soda bread was created out of necessity, to make use of inexpensive ingredients like flour and the sour milk that Irish farm kitchens always had on hand.

Interestingly, the Irish were not the first people to bake with “soda.” Early Native American cooks used pearl ash, a refined form of potash, to leaven their bread well before bicarbonate of soda reached Belfast. The Irish soda bread we recognize today is the modern descendant of both traditions: a chemical-leavened, no-rise loaf you can have on the table in just over an hour, from a pantry shopping list of four ingredients.

According to the Encyclopaedia Britannica, soda bread became a staple of the Irish farmhouse precisely because it needed neither a yeast culture, nor the sort of oven a poor cottage rarely had: a covered cast-iron pot set in the embers of the hearth did the job. The X-cross cut into the top did three useful jobs at once. It let steam escape so the crust would not crack open, it helped the heavy dough cook through to the middle, and in folk tradition it warded off the devil and let the fairies out. Take that one as you like.

Irish Soda Bread Recipe

Ingredients:

  • 4 cups all-purpose flour
  • 1 teaspoons baking soda
  • 1 1/2 teaspoons salt
  • 2 cups buttermilk
  • 1 rounded tablespoon caraway seeds (optional)
  • 1 cup raisins or currants (optional)
  • 1 egg yolk for brushing the top.

Instructions:

  1. Preheat oven to 375° F.
  2. In a large bowl, combine flour, soda, and salt and whisk together well. Stir in buttermilk until dough forms. Add caraway and/or raisins or currants and mix thoroughly.
  3. On a lightly floured surface, knead dough about 30 seconds. Dough will be sticky, so just use enough flour to coat your hands. Shape into round loaf.
  4. Place dough on an ungreased baking sheet lined with a piece of parchment paper. With a serrated knife, cut a 1/2″ X into the top.
  5. Lightly beat egg yolk and brush over the dough.
  6. Bake 50 to 55 minutes, or until the loaf sounds hollow when tapped on the bottom. Transfer from pan to rack and let cool.
  7. Serve warm with butter and Corned Beef and Cabbage.

This is an “Americanized” version of the traditional soda bread recipe, which did not contain any add-ins. You can certainly make the recipe as authentic as you’d like. Either way, it’s guaranteed to be delicious. Serve it warm, slathered with butter, toasted for breakfast, it’s also the perfect addition to your traditional St. Patrick’s Day menu.

Variation: You can also brush the top of your Irish soda bread with cream or milk and add sanding sugar.

Out of some ingredients? Try these substitutions.

Authentic vs. Americanized: Which Irish Soda Bread Are You Baking?

ElementTraditional IrishAmericanized (this recipe)
FlourSoft Irish wholemeal or plain whiteU.S. all-purpose
LeavenerBread soda + buttermilk (or sour milk)Baking soda + buttermilk
Add-insNone, savory bread eaten with stew and butterCaraway seeds, raisins, currants
Crust washPlain flour dustingEgg-yolk wash, or cream + sanding sugar
ShapeRound loaf with deep X crossSame X, sometimes baked in a cast-iron skillet
ServingWarm with butter, beside stew or breakfast eggsWarm with butter, with corned beef and cabbage

Five Common Soda-Bread Mistakes (and the Fix)

  • Over-kneading. Soda bread is not yeast bread. 30 seconds is the whole show. Knead longer and the loaf turns dense and rubbery.
  • Skipping the buttermilk. The acid in buttermilk is what activates the baking soda. Plain milk will not leaven the loaf. If you’re out, stir 2 tablespoons of lemon juice or white vinegar into 2 cups of whole milk, let it sit 5 minutes, then use.
  • A shallow cross. Cut deeper than you think, about half an inch. The X is structural; a shallow score will not let the heavy crumb expand.
  • Pulling it out by color. Crust color lies. Tap the bottom of the loaf; if it sounds hollow, it’s done. An instant-read should hit about 200°F in the center.
  • Slicing it hot. Soda bread keeps cooking on the rack for 15 to 20 minutes. Cut it before then and the crumb gums up.
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Frequently Asked Questions About Irish Soda Bread

Is Irish soda bread really Irish?

Yes, but only since the late 1830s. The technique of leavening with baking soda and sour milk reached the United Kingdom in that decade, and Irish farm kitchens, working with soft wheat and buttermilk, took to it immediately. The bread predates St. Patrick by about 1,400 years, and predates the Great Famine by less than a generation.

Why does Irish soda bread have a cross cut into the top?

Two reasons. Practical: a deep X lets the heavy dough cook through evenly and stops the crust from cracking open at random. Folk: it was believed to bless the loaf, ward off the devil, and let the fairies out so they would not spoil the bread.

Can I make Irish soda bread without buttermilk?

Yes, with a substitute. Stir 2 tablespoons of lemon juice or white vinegar into 2 cups of whole milk and let it sit 5 minutes until it curdles. The acid activates the baking soda just as buttermilk does. Plain milk on its own will not leaven the loaf.

Should Irish soda bread have raisins and caraway?

Traditional Irish soda bread is plain: flour, soda, salt, buttermilk. The raisin-and-caraway version is the American interpretation that arrived with Irish immigrants and stuck. Both are good. The plain loaf eats more like a savory side; the sweet loaf eats more like a tea bread.

How long does Irish soda bread keep?

One day fresh at its best, two days wrapped in a tea towel, three days if you toast it after that. It freezes well: cool fully, wrap in foil, freeze up to a month. Re-warm in a 300°F oven for 10 minutes.

What’s the difference between Irish soda bread and Irish brown bread?

Brown bread uses Irish wholemeal flour and is denser, with a deeper nutty taste; classic soda bread uses white flour and bakes lighter. Both leaven with baking soda and buttermilk and skip yeast.

What should I serve with Irish soda bread?

Cold Irish butter and a wedge of cheddar is the simplest answer. For a meal, pair it with corned beef and cabbage, a bowl of lamb stew, smoked salmon and dill, or just a cup of tea. Toasted with butter and orange marmalade the next morning is arguably the best use of yesterday’s loaf.

For more St. Patrick’s Day kitchen reading, see corned beef and cabbage, the wider St. Patrick’s Day folklore, and shamrock milkshakes.

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This article was published by the Staff at FarmersAlmanac.com. Any questions? Contact us at questions@farmersalmananac.com.

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3 Comments
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marion gibson

This recipe makes a wonderful loaf. I doubled the amount of raisins (goldens) and had to add a little more flour. Caraway was a nice addition-Patrick would like it.

Phil C.

Being born in Ireland and learning at a very young age to make both raisin and brown soda bread I cannot recall any family members that make soda bread ever ever putting caraway seeds in their bread. St. Patrick is rolling over in his grave…… Slante`

Susan Higgins

Hi Phil, the addition of caraway is most definitely an Americanized addition to the traditional recipe.

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