Soft Cheese and Pepperoni Bread

INGREDIENTS

• 6¼ cups (28 oz/794g) unbleached bread flour
• 2 teaspoons salt, or 1 Tablespoon coarse kosher salt
• 5 Tablespoons (2.25 oz/64g) granulated or brown sugar, or 3½ Tablespoons honey or agave nectar
• 1 cup (8 oz/227g) lukewarm water or beer (about 95°F or 35°C)
• 1 cup plus 2 Tablespoons (9 oz/255g) lukewarm buttermilk or any other milk (about 95°F or 35°C)
• 1½ Tablespoons (0.5 oz/14g) instant yeast
• ¼ cup (2 oz/56.5g) melted unsalted butter or vegetable oil
• 1¾ cups (7oz/198g) diced onion (about 1 medium onion) or 1 small bunch of fresh chives (1 oz/28.5g), minced (optional)
• 2½ cups (12 oz/340g) grated, shredded, or cubed cheese