Preheat your oven to 400 degrees F.
In a large bowl combine all wet ingredients EXCEPT for the melted butter. Stir until well combined.
Once combined add in dry ingredients and mix, followed by melted butter, stirring just until combined.
Fold in chocolate chips.
Scoop batter into a muffin pan lined with 12 muffin liners.
Reduce oven heat to 350 degrees F and immediately place muffins into oven. .
Bake for approximately 18-20 minutes or until starting to brown and a toothpick inserted into the center of a muffin comes out clean