01 - Preheat oven to 400°F. Line baking sheet with parchment paper.
02 - In large bowl, whisk together flour, baking soda, salt, and black pepper until well blended.
03 - Stir in grated cheddar and chopped chives until evenly distributed throughout flour mixture.
04 - Create well in center of mixture. Pour in buttermilk and melted butter. Mix with wooden spoon or hands until shaggy dough forms. Add additional buttermilk 1 tablespoon at a time if too dry.
05 - Turn dough onto lightly floured surface. Gently knead just until dough comes together—avoid overworking. Shape into round loaf approximately 7 inches in diameter.
06 - Transfer loaf to prepared baking sheet. Cut deep X across top with sharp knife.
07 - Bake for 30–35 minutes until deeply golden and loaf sounds hollow when tapped on bottom.
08 - Cool on wire rack for at least 15 minutes before slicing. Serve warm or at room temperature.