Preheat oven to 300°F and prepare a cupcake pan with liners.
Add the dry ingredients to a large bowl and whisk them together, set aside.
Combine the egg, buttermilk, oil, and vanilla in another medium-sized bowl.
Add the wet ingredients to the dry ingredients and mix until well combined.
Now add the hot milk/water to the batter and mix until well combined. The batter will be thin.
Fill the cupcake liners about halfway and sprinkle a tbsp of the chopped pear over the top. Bake for 18-23 minutes, or until a toothpick comes out with a few moist crumbs.
Remove the cupcakes from the oven and allow them to cool for 2 minutes, then remove them from the pan to a cooling rack to finish cooling.