Preheat the oven to 350 degrees F (180 degrees C) and prepare a loaf pan with non-stick cooking spray.

In a large bowl, combine 3/4 cup plus 2 tablespoons sugar, oil, egg, and vanilla. Mix well.

In another bowl, mix together flour, cinnamon, baking soda, salt, baking powder, nutmeg, and cream of tartar.

Add the dry ingredients to the wet ingredients and mix until a thick batter forms.

Fold in the grated zucchini until well incorporated.

Prepare the cinnamon sugar topping by whisking together 1/4 cup sugar and 1/2 teaspoon cinnamon.

Pour half the batter into the prepared loaf pan, smooth with a spatula, and sprinkle with half of the cinnamon sugar.

Pour the remaining batter on top, smooth with a spatula, and sprinkle the remaining cinnamon sugar on top.

Bake the bread in a preheated oven for 45 to 55 minutes, or until a toothpick inserted in the center comes out clean.