Ina Garten offers a recipe on FoodNetwork.com for Irish soda bread that calls for flour, sugar, butter, buttermilk and orange zest. The recipe also calls for dried currants, an egg, baking soda and salt. The bread is baked for about 45 minutes to an hour.
Preheat an oven to 375 degrees Fahrenheit, and line a sheet pan with parchment paper. Place 4 cups of all-purpose flour, 4 tablespoons of sugar, 1 teaspoon of baking soda and 1 1/2 teaspoons of kosher salt in the bowl of an electric mixer with a paddle attachment. Cut 1/2 stick of cold butter into 1/2-inch cubes, and add the butter to the bowl while mixing on low speed until fully incorporated.
Use a fork to beat 1 2/4 cups of cold buttermilk with an extra-large egg and 1 teaspoon of grated orange zest. While the mixer continues on low speed, slowly add the buttermilk. Dust 1 cup of dried currants with 1 tablespoon of flour and mix into the dough.
Transfer the dough to a working surface dusted with flour. Knead the dough a few times into a round loaf, place it on the sheet pan, and score an X on the top of the loaf. Bake for 45 to 55 minutes until a wooden skewer inserted into the center comes out clean. Transfer the bread to a baking rack to cool, and then serve warm or at room temperature.