Preparation

• Position a rack in the middle of the oven, and heat the oven to 350°F. Lightly butter and flour fourmini loaf pans, one 12-cup Bundt pan, or one 9×5-inch metal loaf pan.
• In a food processor grind the walnuts, brown sugar, and cinnamon, pulsing in short bursts until the walnut pieces are small, 20 to 30 seconds. Set the streusel aside.
• In a medium bowl, whisk the flour, baking powder, and salt. Add the cranberry pieces and orange zest and whisk again.
• In the bowl of a stand mixer or in a medium mixing bowl, mix the butter on low speed with the stand mixer’s paddle attachment or on medium-low speed with a hand mixer until smooth. Add the sugar gradually and continue mixing on low until slightly fluffy. Scrape the bowl and beater. Add the eggs one at a time, mixing until smooth after each addition.
• Stop the mixer, scrape the bowl and beater, and add half the flour mixture. On low speed (for either mixer), mix until the flour drifts disappear and then add half the buttermilk; mix until just blended. Repeat with the remaining flour and buttermilk. Scrape down the sides of the bowl and mix until smooth.
• 如果使用Mini Loaf Pans，则将每个锅装满大约三分之一的面糊，然后散布光滑。在每个锅中的面糊上撒上一大汤匙streusel。将剩余的面糊分开，平滑散布，并用剩余的streusel撒上每个面包的顶部。如果使用邦特锅或全尺寸面包盘，请倒入一半的面糊，然后光滑。在面糊上撒上一半的streusel，上面撒上剩余的面糊，散布光滑，然后将剩余的streusel撒在顶部。
• Bake until the loaves are golden and a skewer or toothpick inserted into the center comes out clean, 45 to 55 minutes for mini loaves (55 to 60 minutes for a Bundt pan and 60 to 65 minutes for a full-size loaf pan).
• 让面包在架子上的平底锅中冷却10到15分钟，让他们有时间凝固，然后将它们放在架子上，然后将右侧翻转为完全冷却。