In a medium bowl, whisk the egg with the milk until fully mixed. Add the vanilla extract.
Add the sifted flour while continuing mixing. Add the baking powder and salt and mix until all combined.
Peel the pear and remove the core, then chop it into small cubes. Add it to the pancake mix, then also add the chocolate chips and combine.
Add the butter to the pan and let it melt at medium heat. Remove the eccess with kitchen paper but make sure the whole pan is greased.
When the pan is hot, add a ladle of pancake mix in the center. When it's bubbly, after a couple of minutes, turn over with a large spatula and cook for another couple of minutes. Regulate the heat if necessary.
Serve hot with a knob of butter and good maple syrup.