In a mixing bowl, sift together flour, baking powder, and salt.
In a large mixing bowl (this will be the main bowl), whisk together sugar, milk, egg, and melted butter.
Add the dry ingredients to the wet bowl, and fold until just incorporated and still lumpy (see notes for tips on not overmixing).
Add the chocolate morsels to the batter and mix.
In a large skillet, add 1 tsp of oil and 1 tbsp of butter.
Heat until the butter starts to bubble slightly, and use ¼ cup to pour batter into the pan.
Cook over medium heat until the bottom is golden brown, and you see bubbles coming through. Flip the pancakes and cook for a few minutes or until cooked through.
Clean the pan with a paper towel and add 1 tsp of oil and 1 tbsp of butter, and repeat with the remaining batter.