Heat griddle to med-high. Beat eggs; add milk and melted butter and stir to combine.
Sift flour until there are no lumps.
In another bowl, combine flour, sugar baking powder and salt.
Add egg mixture to flour mixture and stir until just combined.
Fold in the chocolate chips.
Set aside 4 to 5 minutes to thicken.
Add 1 tablespoon vegetable oil to the griddle, when oil is hot you're ready to cook pancakes. (You may have to add more oil after you cook a few pancakes.)
Using a ½ cup ice cream scoop, add one scoop full to the griddle and spread into a circle.
Watch carefully. Pancakes will be ready to turn when the edges begin to look dry and bubbles form in the center of the pancake. Turn pancakes only once.
Remove the pancake after 2 to 3 minutes or when golden brown on the second side.