Bran Muffins

Makes 10 muffins (or 12 smaller ones)

• 2 cups unprocessed bran
• 1 1/2 cups raisins, divided
• 1 1/2 cups water, divided
• 1/2 cup buttermilk
• 1 teaspoon orange zest, finely chopped (around 1/3 of an orange)
• 1/2 cup light brown sugar, packed
• 1/2 cup vegetable oil
• 1 extra-large egg
• 1 extra-large egg white
• 1/2 cup unbleached all-purpose flour
• 1/4 cup stone-ground whole-wheat flour
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1/2 teaspoon kosher salt

1. Lightly coat a muffin tin with 1/2-cup capacity cups with melted butter, and fit a pastry bag with a large tip (if desired). Set aside.
2. Adjust the oven rack to the middle setting and preheat the oven to 350º F.
3. Spread the bran on the baking sheet and toast for 6 to 8 minutes, stirring halfway through to make sure it doesn't burn.
4. In a small saucepan, combine 1 cup of the raisins and 1 cup of water and simmer on low heat until the liquid has been absorbed, about 15 minutes. Place in a blender or in a food processor fitted with the steel blade, and process until puréed.
5. Pour the bran into a large bowl, add the buttermilk and remaining 1/2 cup water, and stir to combine. Stir in the raisin purée, orange zest, and brown sugar.
6. Add the oil, the whole egg, and the egg white, mixing well to combine.
7. Sift the flours, baking powder, baking soda, and salt into the raisin mixture. Add the remaining whole raisins and stir to combine.
8. Fill the pastry bag half full and pipe or spoon the batter into the prepared muffin tins, filling the cups to just over the rim and mounding the batter slightly.
9. Bake for about 25 minutes, until the muffins are well-browned and firm to the touch.