Preheat your waffle iron according to the manufacturer's instructions. Lightly grease it with butter or oil to prevent sticking.
In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, baking soda, and fine sea salt until evenly combined.
In a separate bowl, beat the eggs lightly. Add the sourdough starter, buttermilk, melted and cooled butter, and vanilla extract. Whisk until smooth and well incorporated.
Pour the wet ingredients into the dry ingredients. Gently fold together with a spatula until just combined. Avoid overmixing to keep waffles tender.
Scoop the batter onto your preheated waffle iron, using about 1/2 cup per waffle or as recommended by your waffle maker. Close the lid and cook until golden brown and crisp, usually about 4-5 minutes.
Remove waffles carefully and serve immediately with your favorite toppings. Maple syrup, fresh fruit, or a dollop of yogurt complement these waffles beautifully.
Equipment
Waffle Iron
Mixing Bowls
Whisk
Measuring Cups and Spoons
Spatula
Notes
Make sure your sourdough starter is active and bubbly before using it for best results.
Let the batter rest for 10-15 minutes to improve texture by hydrating the flour fully.
Store cooked waffles in an airtight container in the fridge for up to 3 days or freeze for up to 1 month.
Use freshly melted butter cooled to prevent cooking the eggs when mixing.
Try ingredient swaps like whole wheat flour, yogurt as buttermilk substitute, or coconut oil for a dairy-free version.