In a blender, add all ingredients except for chocolate chips. Blend on high speed until the batter is smooth. Allow the batter to sit for 2-3 minutes before cooking to allow it to thicken.

Gently fold in chocolate chips.

Heat griddle to medium heat and coat with a thin layer of melted butter.

Pour batter onto griddle in 4-inch circles. Allow to cook on one side for about 2-3 minutes or until the edges have set. Flip pancake over and cook for an additional 2 minutes.

Repeat with remaining batter.