In stand mixer bowl, add 1 杯 面包粉, yeast, sugar, salt and 小苏打; mix well. In saucepan or microwave-safe dish, 加热水, butter and 白软干酪 to 120-130°F (butter does not need to melt). 加入面粉混合物中. Using a paddle attachment, beat on medium speed for 4 minutes. Add 鸡蛋; beat 1 minute.
Switch to dough hook attachment. Gradually stir in 全麦面粉 and enough remaining 面包粉 to make a firm dough. Knead until smooth and elastic, about 5 to 7 minutes.(NOTE: For hand mixing: following above steps, mix ingredients in 大 mixing bowl using a wooden spoon or dough whisk. Knead on floured surface until smooth and elastic.)
Place dough in lightly oiled bowl and turn to grease top. Cover; let rise until indentation remains after poking dough with finger down to second knuckle, 大约1小时.
Prepare pans: Grease two 8×8-inch pans; set aside.
Turn dough onto lightly floured surface; punch down to remove air bubbles. Divide dough into 4 equal parts. Divide each part into 6 pieces. Shape each piece into a smooth ball. Place in prepared pans. Cover; let rise until indentation remains after touching.
Preheat oven to 375º F.
Bake 12 to 15 minutes. Brush with melted butter. Remove from pans and cool.