Ingredients
This recipe uses a classic three-station breading setup: flour, egg wash, and seasoned panko with Parmesan.
- 2 medium zucchini
- ½ cup all-purpose flour
- 2 large eggs
- 1 tablespoon milk
- 1 cup panko breadcrumbs
- ½ cup grated Parmesan cheese
- 1 teaspoon garlic powder
- ½ teaspoon onion powder
- 1 teaspoon Italian seasoning
- ½ teaspoon paprika
- ¼ teaspoon black pepper
- ¼ teaspoon salt
- Olive oil cooking spray
A Closer Look at the Key Ingredients
Zucchini. Choose medium zucchini that feel firm and heavy for their size, with glossy, unblemished skin. Smaller to medium zucchini have fewer seeds and less water than oversized ones, which matters a lot for crispiness. Very large zucchini tend to be watery and seedy, so save those for baking or soups.
All-purpose flour. The flour is the first layer of the coating. It absorbs surface moisture and gives the egg something to grip. Skipping this step is a common reason breading slides off.
Eggs and milk. Whisked together, they form the “glue” that holds the crumbs in place. The splash of milk thins the eggs just enough for an even, light coating.
Panko breadcrumbs. Japanese-style panko is made of larger, airier flakes than standard breadcrumbs, and it bakes up lighter and crunchier. If you can only find regular breadcrumbs, they will work, but the texture will be a bit denser.
Parmesan cheese. Use finely grated Parmesan for the best adhesion and flavor. Freshly grated from a wedge tastes richer, but the dry, shelf-stable grated kind also works well in a breading mix.
The seasonings. Garlic powder, onion powder, Italian seasoning, paprika, black pepper, and salt build a well-rounded flavor. Because Parmesan is already salty, the recipe keeps the added salt modest.
Olive oil cooking spray. A light spray on the pan and over the tops of the fries helps the panko brown and crisp in the oven. It replaces the oil you would otherwise use for frying.
Instructions
Step 1: Preheat the Oven
Preheat your oven to 425°F (220°C). Line a large baking sheet with parchment paper and lightly coat it with cooking spray. A hot oven is essential. It dries the coating quickly and gives you that golden, crunchy finish before the zucchini has time to release too much moisture.
Step 2: Prepare the Zucchini
Wash and dry the zucchini thoroughly. Trim off both ends and slice each zucchini into thin matchstick strips, approximately ¼ inch thick. Pat them dry with paper towels to remove excess moisture.
This drying step is more important than it looks. Water is the enemy of crispiness. The drier the zucchini is when it enters the breading, the better the crust will stick and the crunchier the finished fries will be.
Cutting tips:
- Cut the zucchini in half crosswise so you have two shorter, more manageable pieces.
- Slice each piece lengthwise into thin planks, stack the planks, and cut them into matchsticks.
- Try to keep the strips even in thickness so they cook at the same rate.
- A mandoline with a julienne attachment makes quick work of this, but use the hand guard and take your time.
- Whenever possible, cut mostly from the firm outer flesh and trim away large, wet seed sections, which turn mushy more easily.
Step 3: Prepare the Coating Stations
Set up three shallow bowls in an assembly line:
- Bowl one: Place the ½ cup of flour.
- Bowl two: Whisk together the 2 large eggs and 1 tablespoon of milk until smooth.
- Bowl three: Combine the panko breadcrumbs, Parmesan cheese, garlic powder, onion powder, Italian seasoning, paprika, black pepper, and salt. Stir well so the seasonings are evenly distributed.
Having everything lined up before you start makes the breading go quickly and keeps your hands from turning into clumpy, breaded mittens.
Step 4: Coat the Zucchini
Toss the zucchini matchsticks in the flour, shaking off any excess. Dip them into the egg mixture, allowing the excess to drip off, then coat them evenly in the Parmesan breadcrumb mixture. Gently press the coating onto the zucchini so it sticks well.
Pro tip: Work in small handfuls rather than coating every strip individually. Toss a small bunch in the flour, lift them into the egg, let the extra drip away, and then lay them in the crumbs and press. Use one hand for the dry ingredients and one hand for the wet to avoid clumps.
Step 5: Arrange on the Baking Sheet
Spread the coated zucchini strips in a single layer on the prepared baking sheet, leaving a little space between them. Avoid overcrowding the pan to help the fries become crispy. Lightly spray the tops with olive oil cooking spray.
Crowding traps steam, and steam softens breading. If your fries do not fit comfortably in one layer, divide them between two baking sheets rather than piling them up.
Step 6: Bake Until Crispy
Bake for 15–20 minutes, gently turning the fries halfway through, until they are golden brown and crispy. Keep an eye on the thinner pieces to prevent them from browning too quickly.
Because shoestring fries are so thin, they can go from golden to overly dark in a hurry. Start checking at around the 12-minute mark, and remove any very thin pieces that are already done while the rest finish baking.
Step 7: Serve
Remove from the oven and let the zucchini fries cool for 2–3 minutes. Serve immediately while hot and crunchy with ranch dressing, marinara sauce, or creamy garlic dip. Enjoy!
That short rest lets the coating set and firm up. Zucchini fries are at their absolute best straight out of the oven.