There’s a quiet brilliance in turning humble summer squash into a golden, shattering crisp that whispers of indulgence without guilt. This recipe for Crispy Zucchini with Pesto Aioli draws on a classic Russian technique – salting and draining the zucchini to intensify its flavor and texture – then pairs it with an impossibly creamy, herb-flecked sauce that elevates the dish to restaurant-worthy heights. Whether you’re looking for a showstopping appetizer, a side dish for grilled meats, or a snack that disappears in minutes, these crunchy sticks deliver every time.
About the Recipe
This recipe is a modern interpretation of traditional Russian fried zucchini (kabachki), a beloved summer staple across Eastern Europe. The key to its extraordinary crunch lies in two steps: first, salting the cut zucchini to draw out excess moisture, then dipping each piece in a light, bubbly batter made with sparkling water and whipped egg white. The batter, when fried in hot oil, yields a delicate, airy crust that contrasts beautifully with the tender interior. The accompanying sauce – a quick immersion-blender aioli brightened with tangy pesto and fresh lemon – adds a vibrant, savory finish that ties the whole dish together. It’s a perfect example of how a few simple techniques can transform everyday ingredients into something truly special.
Ingredients
- 2–3 medium zucchini (about 500 g total)
- 250 ml vegetable oil (for frying)
- ½ tsp dried oregano
- Salt and freshly ground black pepper, to taste
- 120 ml sparkling water
- 75 g all-purpose flour
- 1 egg white
- 120 ml olive oil (for aioli)
- 1 egg yolk
- 1 garlic clove, minced
- Juice of ½ lemon
- 1 tbsp pesto (store-bought or homemade)
- 1 tsp Dijon mustard
For the batter, using light oil spray can help keep the frying uniform, though here we use a deep skillet. The aioli benefits from a good-quality olive oil and a freshly squeezed lemon – small details that make a big difference.
Step-by-Step Instructions
Step 1: Prepare the Zucchini
Cut the zucchini into sticks about 1 cm thick (like thick French fries). Place them in a bowl, sprinkle generously with salt, and toss to coat. Transfer to a colander set over a bowl and let drain for 20 minutes. This draws out excess water, ensuring a crisp finish. After draining, spread the zucchini sticks in a single layer on paper towels and pat dry thoroughly.
Step 2: Make the Pesto Aioli
In the tall cup of an immersion blender (or a glass food processor), combine the egg yolk, mustard, and a pinch of salt. Slowly pour in the olive oil while blending at high speed – the mixture will emulsify and thicken within seconds. Add the lemon juice and pesto, then blend again to incorporate. Transfer the aioli to a small bowl and refrigerate until needed.
Step 3: Heat the Oil
In a deep skillet or Dutch oven, heat the 250 ml of vegetable oil over medium heat until shimmering (about 175°C). You can test the temperature by dropping a bit of batter – it should sizzle immediately.
Step 4: Make the Batter and Fry
In a clean bowl, beat the egg white to stiff peaks. In a separate bowl, whisk together the flour and sparkling water until smooth (it will be slightly thick). Gently fold in the beaten egg white. Dip a small batch of zucchini sticks into the batter, letting excess drip off, then carefully lower them into the hot oil. Fry for about 1 minute, turning once, until deep golden and crisp. Using a slotted spoon, transfer to a plate lined with paper towels to drain. Repeat with remaining zucchini in small batches to maintain oil temperature.
Step 5: Season and Serve
While still warm, sprinkle the fried zucchini with dried oregano, salt, and freshly ground black pepper. Toss gently to coat. Serve immediately with the chilled pesto aioli on the side for dipping.
Tips for Perfect Crispy Zucchini
- Don’t skip the salting step – it’s the foundation of a non-soggy result. Use a refrigerant leak detector? No, but do use a colander and plenty of salt.
- Keep the oil hot but not smoking. A kitchen thermometer helps, or simply test with a wooden spoon – bubbles should form around it.
- Work in small batches to prevent the oil temperature from dropping, which leads to greasy zucchini.
- Use sparkling water for the batter – the bubbles create a lighter, airier crust. If you don’t have it, substitute still water with a pinch of baking soda.
- Serve immediately – these are best eaten within minutes of frying. For keeping warm, use a steam canner? No, just serve right away or reheat in an air fryer.
Variations
This recipe is endlessly adaptable. Replace the pesto with sun-dried tomato paste for a Mediterranean twist, or add a pinch of smoked paprika to the batter. For a gluten-free version, substitute the all-purpose flour with rice flour or chickpea flour (the batter will be slightly thicker). The aioli can also be made vegan by using a planetary mixer with aquafaba instead of egg yolk – just use a high-speed blender to emulsify. If you enjoy a bit of heat, stir a teaspoon of sriracha or harissa into the aioli.
Frequently Asked Questions
Can I bake these instead of frying?
Yes, though the texture will be less shatteringly crisp. Arrange the battered zucchini on a parchment-lined baking sheet, spray with non-toxic air fryer oil, and bake at 220°C for 12–15 minutes, flipping halfway. For extra crunch, a convection countertop convection oven works wonders.
How do I store leftover crispy zucchini?
These are best eaten fresh, but if you have leftovers, store them in an airtight container in the refrigerator for up to 1 day. Reheat in an air fryer or oven at 180°C for 5 minutes to revive some crispness. Avoid microwaving.
What if I don’t have a pesto? Can I skip it?
Absolutely. The aioli is delicious even without pesto – just add an extra pinch of salt and a touch more lemon juice. Or mix in finely chopped fresh basil for a similar effect.
Can I use green or yellow squash instead of zucchini?
Yes, any summer squash works well. Just make sure to cut them evenly and adjust salting time if they are particularly watery.
Why is my batter falling off the zucchini?
This usually happens if the zucchini wasn’t dried thoroughly after salting. Pat them very dry with paper towels before dipping. Also, make sure the oil is hot enough so the batter sets immediately upon contact.
Is this recipe suitable for meal prep?
The aioli can be made up to 2 days in advance and stored in the refrigerator. The zucchini are best cut and salted just before frying. You can par-fry them, cool, and then re-crisp in an air fryer or oven – but for optimal results, fry and serve immediately.
For more inspiration on summer entertaining, check out our guide to the best chocolate-covered raisins or explore coffee makers for Airbnb to pair with your appetizer spread. And if you’re building a kitchen from scratch, don’t miss our roundup of 48-inch built-in refrigerators for ample storage.
Craving more crunch? Try our Catalan sponge cake for a sweet finish, or browse the best George Howell coffee to brew alongside this dish.
