Whole Wheat and Oatmeal Sandwich Bread

Ingredients

• 3⁄4 cup old-fashioned rolled oats, plus some for dusting the pans
• 1 cup hot milk
• 1 cup hot water
• 1⁄4 cup honey
• 3 tablespoons unsalted butter, in 1⁄4-inch pieces
• 1⁄4 cup warm (105° to 115°F) water
• 2-1⁄4 teaspoons (1 packet) active dry yeast
• 1⁄3 cup buttermilk or plain yogurt, at room temperature
• 2 cups whole wheat flour
• 1 egg yolk
• 2-1⁄2 teaspoons salt
• 4 4-1⁄2 cups unbleached all-purpose flour