In a mixing bowl, whisk together the flour, baking powder, baking soda, sugar, and salt. Then set aside.
In another bowl, whisk together sourdough discard, milk, egg, melted butter, and vanilla extract until combined.
Next, pour the wet ingredients into the dry ingredients and stir until just combined. Be careful not to overmix.
Then, heat a lightly greased pan or skillet over medium-low heat. Pour about 1/4 cup or so of batter into the pan.
At this point, add in any fruit or chocolate chips. What I like to do is just sprinkle them on top of the pancakes in the skillet when they are still doughy and not formed yet.
Next, flip the pancakes once the edges seemed to have set. Let cook for an additional few minutes until golden.
Let the sourdough pancakes cool a little and enjoy! :)