Prepare the zucchini: Grate the zucchinis and place them in a colander. Sprinkle with salt and let sit for 10 minutes to draw out moisture.

Squeeze out excess water: After 10 minutes, use a clean kitchen towel or cheesecloth to squeeze out as much liquid as possible from the grated zucchini.

Mix ingredients: In a large bowl, combine the grated zucchini, grated onion, beaten eggs, flour, salt, black pepper, and garlic powder. Stir until well combined.

Heat the oil: In a large skillet, heat the vegetable oil over medium-high heat until shimmering.

Form and fry latkes: Scoop about 2 tablespoons of the zucchini mixture per latke and flatten into patties. Carefully place them in the hot oil. Fry for 3-4 minutes per side, or until golden brown and crispy.

Drain and serve: Transfer the fried latkes to a paper towel-lined plate to drain excess oil. Serve warm with sour cream or applesauce.