In a large bowl, beat the eggs until broken and combined. Add the shredded zucchini, onion, and sweet corn, and mix to combine all the ingredients. Add the garlic powder, cayenne pepper, black pepper, flour, salt, baking powder, and Parmesan cheese. Fold the dry ingredients into the wet to form a wet batter.
Heat 2 tbsp of neutral oil (or ghee) over medium heat in a 12-inch skillet. Once the oil is hot, scoop 1-ounce (or 2 tbsp) dollops of batter into the skillet. Press the batter out into roughly 3-inch round fritters, leaving at least 1-inch between each fritter. Pan fry the fritters, flipping once until they are golden brown on both sides, 3-4 minutes per side.
Once the fritters are finished, place them on a baking rack fitted into a baking sheet. To keep them warm, place them in a 200°F oven between making batches of fritters. Serve with the chipotle sauce.
Combine the mayonnaise, chipotle powder, Mexican oregano, minced garlic, and lime juice. Whisk until smooth and serve with fritters.
