Sift together flour, baking powder, baking soda, salt, and sugar into a large mixing bowl. Add the chocolate chips and mix again. Set aside.
In a separate bowl, whisk together the egg, vanilla, milk, and the cooled unsalted butter until combined.
Pour the wet ingredients into the dry ingredients and whisk just until combined. Do NOT overmix.
Heat a large skillet or griddle on medium high heat. Once hot, add 1 Tbsp of butter to grease the pan. Using a 1/3 measuring cup, pour the batter into the skillet. (Add some additional chocolate chips on top if desired.)
Cook for 2-3 minutes, looking for bubbles and firm edges. Flip and cook for another 1-2 minutes.
Remove and repeat until the chocolate chip pancake batter is gone, you should have about 8 pancakes.
Serve with desired sides immediately, while still warm and enjoy.