In a mixing bowl, combine all the dry ingredients and mix. Set aside.
Mix the milk, egg, melted butter, and vanilla in another mixing bowl. Mix.
Slowly add the dry mixture to the liquid and mix until fully incorporated.
Peel and shred the zucchini using a fine cheese grater. Add shredded zucchini to the batter and fold it in.
Pre-heat the air fryer at 350°f
Fold in 3/4 cup of chocolate chips.
Spray jumbo muffin liners and fill 3/4 way full.
Top batter with 4-5 chocolate chips and place in the air fryer basket.
Cook at 350°f for 12 minutes or until fully cooked. Use a toothpick to stick in the middle of a muffin. If you have batter on it when you pull it out continue to cook and test every minute until fully cooked.
Remove and let cool before removing from muffin liners.