Begin by preheating your oven to 375°F (190°C) and lining a muffin tin with paper liners.

Grate the zucchinis and squeeze out any excess moisture. Set aside for later use.
In a large bowl, combine the all-purpose flour, baking powder, baking soda, salt, and pepper.

In another bowl, whisk together the eggs, vegetable oil, and milk.

Gradually add the dry ingredients to the wet mixture, stirring just until everything is combined.

Stir in the grated zucchini, grated cheddar cheese, and chopped chives.