Roasted Potato Bread Recipe | Epicurious

Ingredients

• Nonstick vegetable oil spray
• 1 teaspoon (3 g) active dry yeast
• 1/3 cup (80 g) potato flour
• 3 1/2 cups (500 g) all-purpose flour, plus more
• 1 cup (180 g) buttermilk
• 2 tablespoons plus 1 teaspoon (25 g) distilled white or apple cider vinegar
• 2 tablespoons (20 g) kosher salt
• 7 tablespoons (100 g) unsalted butter, room temperature, cut into 6 pieces
• Milk (for brushing)