Sift flour, sugar, baking powder and baking soda together in a large mixing bowl.
Pour in milk, slightly cooled melted butter, and vanilla. Whisk egg and add to mixture.
Stir to combine all ingredients. Batter will be slightly lumpy. (see notes)
Fold in chocolate chips.
Preheat your skillet or griddle over low/medium heat with a little butter melted in it (add little bits of butter in between each batch of pancakes). Use a 1/4 cup measuring cup to measure out batter onto the cook surface.
When bubbles appear on the top side of the pancake, and it easily lifts from the skillet, flip and cook on the other side.
Can top with honey, syrup, or just enjoy as is.