Crispy Fried Zucchini Rounds with Tangy Citrus Dipping Sauce
Golden, crispy zucchini rounds get a double coating of light batter and crunchy panko before frying to perfection. The bright citrus sauce, spiked with lime zest, Dijon mustard, and a hint of cayenne, cuts through the richness beautifully. Perfect as an appetizer for summer gatherings or a side dish that transforms humble zucchini into something special. The carbonated water in the batter creates an exceptionally light, airy coating that stays crisp.
Ingredients
- ½ cup mayonnaise
- ¼ cup sour cream
- ½ tablespoon Dijon mustard
- ½ lime, zest and juice
- 1 tablespoon fresh parsley, chopped
- ⅛ teaspoon cayenne pepper
- 3 teaspoons coarse salt, divided
- ¾ teaspoon freshly ground black pepper, divided
- 2 cups all-purpose flourgluten-free flour blend1:1gluten-freegluten-free
may affect texture slightly
- 2 cups cornstarch
- 2 ½ cups soda water
- 2 medium zucchini, cut into 1/2-inch-thick rounds
- 2 cups panko breadcrumbs
- vegetable oil, for frying
Instructions
- 1
Whisk together mayonnaise, sour cream, mustard, lime zest and juice, parsley, cayenne, salt, and pepper
- 2
Refrigerate sauce for at least 1 hour
- 3
Whisk together flour, cornstarch, salt, and pepper in large bowl
- 4
Slowly add soda water while whisking to make thin pancake batter consistency
- 5
Dip zucchini rounds in batter, then coat with breadcrumbs, pressing to adhere
- 6
Set coated zucchini aside on plate
- 7
Prepare paper towel-lined plate near stovetop
- 8
Heat 1 inch of oil in heavy-bottomed pot over medium heat to 350°F
- 9
Test oil readiness by dropping small amount of batter - should bubble immediately
- 10
Fry zucchini in batches without crowding pan
- 11
Cook until bottoms are golden brown, about 30-45 seconds, then flip
- 12
Cook other side until golden
- 13
Remove with slotted spoon to paper towel-lined plate
- 14
Sprinkle with remaining salt while hot
- 15
Serve warm with citrus sauce
Tips
Test oil temperature with a thermometer or drop of batter - properly heated oil prevents soggy coating and ensures even browning
Don't skip chilling the sauce as it allows flavors to meld and thickens slightly for better consistency
Work quickly when coating zucchini to prevent batter from becoming too thick, and fry immediately for crispiest results
Good to Know
Store leftover sauce in refrigerator for up to 3 days. Fried zucchini best eaten immediately but can be stored in refrigerator for 1 day.
Sauce can be made up to 1 day ahead. Zucchini can be coated and held for 30 minutes before frying.
Serve immediately while hot and crispy with the chilled citrus sauce on the side.
Common Mistakes
Don't overcrowd the pan to avoid temperature drop and soggy coating
Pat zucchini dry before coating to help batter adhere properly
Don't skip the resting time for sauce to avoid thin, separated consistency
Substitutions
Gluten-Free Swaps
may affect texture slightly
General Alternatives
FAQ
Can I bake these instead of frying?
Yes, bake at 425°F for 15-20 minutes, flipping halfway through. They won't be as crispy as fried but still delicious with less oil.
What if I don't have soda water?
Regular water works but soda water creates a lighter, crispier batter due to carbonation. Beer is another good substitute.
How long does the sauce keep?
The citrus sauce keeps in the refrigerator for up to 3 days. The lime flavor may intensify slightly over time.