Step 1:

• In a large mixing bowl, combine the sourdough starter, flour, milk, melted butter or oil, and sugar.
• Stir until well combined.Add the baking powder, baking soda, and salt to the batter. Mix until incorporated.

Step 2:

• Separate the eggs, placing the yolks in the batter mixture and the whites in a clean, dry mixing bowl.
• Beat the egg whites with a whisk or electric mixer until stiff peaks form.

Step 3:

• Gently fold the beaten egg whites into the batter until just combined. Be careful not to overmix, as this will deflate the egg whites and result in less fluffy waffles.
• Preheat your waffle iron according to manufacturer’s instructions. Lightly grease the waffle plates with cooking spray or butter.

Step 4:

• Pour enough batter onto the preheated waffle iron to cover the waffle plates, being careful not to overfill.
• Close the waffle iron and cook the waffles according to manufacturer’s instructions, or until golden brown and crisp.
• Carefully remove the cooked waffles from the waffle iron and serve immediately, or keep warm in a low oven until ready to serve.