Add the flour, baking powder, sugar, and salt to a medium bowl and whisk well to combine.
In a microwave-safe bowl, melt the butter and then add in the buttermilk and vanilla and mix.
Add in the egg and whisk well, until the egg has been fully incorporated into the mixture.
Add the wet mixture into the dry mixture and whisk until fully combined. Some lumps are ok!
Add in your desired mix ins (more on this to follow).
Using a ⅓ cup measure, pour your batter onto your griddle and wait for bubbles to form across the surface of the pancake. The cooked side should be golden brown!
Flip and cook again before transferring to a plate. Top with butter and syrup!