Step 1：

• Preheat your waffle iron to medium or dark setting and preheat your oven to 200°F (93°C).

Step 2：

• In a large bowl, whisk together sourdough starter, milk, and eggs until well combined.
• In another bowl, mix flour, baking powder, sugar, and salt.
• Combine the dry ingredients with the wet mixture. Add melted butter and mix until just combined.

Step 3：

• Ladle the batter onto the preheated waffle iron.
• Cook for about 4 minutes until golden brown and fragrant. Cooking time may vary depending on your waffle iron.
• Keep the first batch warm in the oven while you cook the rest. Once done, serve immediately.

Step 4：

• Any leftovers can be stored in an airtight container for up to three days.
• Reheat before serving.