Apple Cinnamon Zucchini Muffins

Preheat oven to 350 degrees F (175 degrees C). Spray 24 muffin cups with cooking spray or line with paper liners.

Whisk sugar, oil, eggs, and vanilla extract together in a bowl until smooth. Stir flour, cinnamon, baking soda, and baking powder into sugar mixture just until batter is combined. Fold zucchini and apple into batter and spoon into the prepared muffin cups.

Bake in the preheated oven until until muffins spring back after pressing the top, about 25 minutes.