Heat a skillet to 325-350°F.
In a large bowl, place sugar, flour, baking powder, baking soda, and salt. Whisk together. Add in eggs, milk, and vanilla.
Mix until fully incorporated. Fold in zucchini.
Using a 1/4 measuring cup, pour batter onto heated griddle.
When the pancake is full of bubbles, flip to other side and cook for approximately one more minute.