Multigrain Yeast Bread

INGREDIENTS

• 1 1/2 cups nonfat milk
• 1/4 cup dark molasses
• 1 envelope (2 1/2 tsp.) active dry yeast
• 2 cups all-purpose flour, plus more as needed
• 1 cup whole-wheat flour
• 1/2 cup plus 1 Tbs. rolled oats
• 1 1/2 tsp. kosher salt
• 1 egg, separated
• 1/3 cup plus 1 Tbs. hulled unsalted, toasted sunflower seeds