In a large bowl, mix together 2 cups all-purpose flour, 2 teaspoon baking powder, ½ teaspoon baking soda, and ½ teaspoon salt.
In a separate medium bowl, add the 1 ½ cups milk, ¼ cup melted butter (it should be cooled to room temperature), 2 eggs, and 1 teaspoon vanilla extract. Beat together using a whisk.
Pour the wet ingredients into the dry ingredients bowl. Mix together until combined. It’s okay if there are some lumps in the batter.
Fold in ½ cup mini chocolate chips to the batter using a spatula.
Heat a frying pan or electric griddle over medium-high heat. Spray it with non-stick cooking spray.
Scoop ½ cup of pancake batter onto the pan (you can also use ⅓ cup for smaller pancakes). Cook until small bubbles appear on the surface, then flip over. Cook until pancakes are golden brown, then remove from heat and add to a plate.
Repeat with the rest of the batter until all pancakes are made. Serve pancakes with butter, pure maple syrup or whipped cream.