
In a large bowl, whisk to combine the flour, sugar, baking powder, baking soda and salt.
In a medium bowl, whisk to combine the starter, milk, eggs and butter. Add the wet ingredients to the dry ingredients and stir gently to combine. (The batter should be lumpy). Set aside.
Heat a griddle or large nonstick skillet over medium heat. Grease with a thin layer of more melted butter or oil.
Using a ⅓ cup measure, drop the pancake batter onto the griddle or skillet, leaving about 1” of space in between each pancake.
Cook for 3 to 4 minutes or until bubbles appear all over the top and the underside is golden brown. Flip the pancakes and cook for 1 to 2 more minutes, until golden brown on the bottom and the centers are cooked through. Transfer to a wire rack. Repeat with the remaining batter.
Serve warm with butter, maple syrup, and fresh berries.