1In a large bowl, mix dry ingredients: cornmeal, flour, sugar, baking powder, baking soda, and salt.
2In another bowl, combine melted butter, eggs, and buttermilk. Pour wet ingredients over dry and stir just until incorporated. If using, add chopped pickled peppers and gently mix.
3Preheat air fryer to 165°C (330°F) for 5 minutes. Grease a small bundt pan (17-18 cm) with nonstick spray. Pour batter, leaving about 2.5 cm from the rim.
4Cover pan loosely with aluminum foil. Cook at 165°C (330°F) for 35 minutes.
5Remove foil, increase temperature to 175°C (350°F), and cook for another 9 minutes until golden. Carefully invert bread onto a plate, slice, and serve warm.