Savory Bacon and Cheddar Sourdough Waffles

1. In a large bowl, combine the sourdough starter and flour until mixed thoroughly. 2. Add baking soda, baking powder, garlic powder, onion powder, and salt, and mix well. 3. In a separate bowl, whisk together the eggs and milk until fully combined. 4. Pour the egg mixture into the sourdough mixture and stir until just combined. 5. Fold in the crumbled bacon and shredded cheddar cheese. 6. Stir in the melted butter until the batter is mixed but still slightly lumpy. 7. Preheat your waffle iron according to the manufacturer's instructions. 8. Pour an appropriate amount of batter onto the preheated waffle iron and cook until golden brown and crispy, usually about 4-5 minutes. 9. Repeat with the remaining batter, keeping finished waffles warm in a low oven if needed.