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Oatmeal-Walnut Soda Bread

By America's Test Kitchen

Published on August 22, 2007

Time

1½ hours, plus 1 hour soaking and 30 minutes cooling

Yield

Yields 1 loaf

Oatmeal-Walnut Soda Bread

Ingredients

2 ½ cups rolled oats, divided1 ¾ cups buttermilk 2 cups bleached all-purpose flour, plus more for work surface½ cup cake flour ½ cup stone-ground whole wheat flour ¼ cup brown sugar 1 ½ teaspoons baking soda 1 ½ teaspoons cream of tartar 1 ½ teaspoons table salt 2 tablespoons unsalted butter, softened1 tablespoon unsalted butter, melted1 cup walnuts, toasted in a pan over medium heat, stirring, until just fragrant, 4 to 5 minutes

Instructions

  1. Soak 2 cups rolled oats in buttermilk for 1 hour. Adjust oven rack to upper-middle position and heat oven to 400 degrees. Whisk flours, sugar, baking soda, cream of tartar, remaining 1/2 cup rolled oats, and salt in large bowl. Work softened butter into dry ingredients with fork or fingertips until texture resembles coarse crumbs.
  2. Add buttermilk-soaked oats and toasted walnuts and stir with a fork just until dough begins to come together. Turn out onto flour-coated work surface; knead until dough just becomes cohesive and bumpy, 12 to 14 turns. (Do not knead until dough is smooth, or bread will be tough.)
  3. Pat dough into a round about 6 inches in diameter and 2 inches high; place on greased or parchment-lined baking sheet or in cast-iron pot, if using. Place the loaf on a cookie sheet and cut a cross shape into the top.
  4. Bake until golden brown and a skewer inserted into center of loaf comes out clean or internal temperature reaches 190 degrees, 45 to 55 minutes. Remove from oven and brush with melted butter; cool to room temperature, 30 to 40 minutes.
Oatmeal-Walnut Soda Bread

Oatmeal-Walnut Soda Bread

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By America's Test Kitchen
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Time

1½ hours, plus 1 hour soaking and 30 minutes cooling

Yield

Yields 1 loaf

Ingredients

2 ½ cups rolled oats, divided
1 ¾ cups buttermilk
2 cups bleached all-purpose flour, plus more for work surface
½ cup cake flour
½ cup stone-ground whole wheat flour
¼ cup brown sugar
1 ½ teaspoons baking soda
1 ½ teaspoons cream of tartar
1 ½ teaspoons table salt
2 tablespoons unsalted butter, softened
1 tablespoon unsalted butter, melted
1 cup walnuts, toasted in a pan over medium heat, stirring, until just fragrant, 4 to 5 minutes

Test Kitchen Techniques

Ingredients

2 ½ cups rolled oats, divided
1 ¾ cups buttermilk
2 cups bleached all-purpose flour, plus more for work surface
½ cup cake flour
½ cup stone-ground whole wheat flour
¼ cup brown sugar
1 ½ teaspoons baking soda
1 ½ teaspoons cream of tartar
1 ½ teaspoons table salt
2 tablespoons unsalted butter, softened
1 tablespoon unsalted butter, melted
1 cup walnuts, toasted in a pan over medium heat, stirring, until just fragrant, 4 to 5 minutes

Test Kitchen Techniques

Ingredients

2 ½ cups rolled oats, divided
1 ¾ cups buttermilk
2 cups bleached all-purpose flour, plus more for work surface
½ cup cake flour
½ cup stone-ground whole wheat flour
¼ cup brown sugar
1 ½ teaspoons baking soda
1 ½ teaspoons cream of tartar
1 ½ teaspoons table salt
2 tablespoons unsalted butter, softened
1 tablespoon unsalted butter, melted
1 cup walnuts, toasted in a pan over medium heat, stirring, until just fragrant, 4 to 5 minutes

Test Kitchen Techniques

Why This Recipe Works

When developing our Irish soda bread recipe, our first tests focused on flour. A loaf made with all-purpose flour produced a doughy, heavy bread with a thick crust. To soften the crumb, we added some cake flour to the mix, and this made a difference. With only the four basic ingredients of flour, buttermilk, baking soda, and salt, our soda bread recipe was lacking in flavor and still a little tough; we turned to sugar and butter. The sugar added flavor without making the bread sweet and the butter softened the dough just enough with out making it overly rich.

Instructions

  1. Soak 2 cups rolled oats in buttermilk for 1 hour. Adjust oven rack to upper-middle position and heat oven to 400 degrees. Whisk flours, sugar, baking soda, cream of tartar, remaining 1/2 cup rolled oats, and salt in large bowl. Work softened butter into dry ingredients with fork or fingertips until texture resembles coarse crumbs.
  2. Add buttermilk-soaked oats and toasted walnuts and stir with a fork just until dough begins to come together. Turn out onto flour-coated work surface; knead until dough just becomes cohesive and bumpy, 12 to 14 turns. (Do not knead until dough is smooth, or bread will be tough.)
  3. Pat dough into a round about 6 inches in diameter and 2 inches high; place on greased or parchment-lined baking sheet or in cast-iron pot, if using. Place the loaf on a cookie sheet and cut a cross shape into the top.
  4. Bake until golden brown and a skewer inserted into center of loaf comes out clean or internal temperature reaches 190 degrees, 45 to 55 minutes. Remove from oven and brush with melted butter; cool to room temperature, 30 to 40 minutes.

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