01 - In a large bowl, combine the grated zucchinis, chopped onion, and a pinch of salt. Let it sit for about 10 minutes to draw out moisture. Squeeze out excess liquid using a clean kitchen towel.
02 - In another bowl, mix the flour, baking powder, salt, and pepper.
03 - Add the squeezed zucchini mixture, shredded cheese, and eggs to the dry ingredients. Stir until well combined.
04 - Preheat a waffle iron and lightly grease it. Pour the batter into the waffle iron and cook according to the manufacturer's instructions until golden brown and crispy.
05 - While the waffles are cooking, mix sour cream with a pinch of salt and serve as a dip alongside the waffles.