Tempura Sweet Corn Zucchini

Featured in: Sweet & Savory Fritters

Enjoy crispy fritters made by folding sweet corn and grated zucchini into a light, airy tempura batter. Deep-fried until golden, these bites deliver a blend of sweet vegetables encased in a delicately crunchy coating. Serve hot with lemon wedges and a dipping sauce for an irresistible appetizer or snack. Suitable for vegetarians, they require simple ingredients and minimal prep, making them accessible for all skill levels. Adjust flavors with herbs or chili flakes, and try various dipping sauces for extra enjoyment.

Updated on Mon, 29 Sep 2025 17:51:57 GMT
Golden-brown Tempura Sweet Corn Zucchini Fritters ready to serve with lemon wedges and dipping sauce. Save
Golden-brown Tempura Sweet Corn Zucchini Fritters ready to serve with lemon wedges and dipping sauce. | fryzia.com

This light and crispy vegetable fritter recipe has become my go-to summer appetizer whenever I'm entertaining. The delicate tempura batter creates an airy coating around sweet corn kernels and tender zucchini, resulting in fritters that disappear from the plate almost instantly.

I first made these fritters for a backyard gathering when I had an overflow of garden zucchini, and they've become the most requested dish at our summer parties ever since. The Japanese-inspired tempura technique transforms ordinary vegetables into something extraordinary.

Ingredients

  • All purpose flour: creates the foundation for our delicate batter structure
  • Cornstarch: is crucial for achieving that signature tempura lightness
  • Baking powder: provides just enough lift for airy fritters
  • Cold egg: helps maintain the proper temperature for crispy results
  • Ice cold sparkling water: creates those distinctive tempura bubbles
  • Fresh zucchini: adds moisture and a subtle garden flavor
  • Sweet corn kernels: provide bursts of natural sweetness
  • Green onions: contribute a mild aromatic element
  • Vegetable oil with a high smoke point: ensures proper frying

Instructions

Prepare the vegetables:
Thoroughly squeeze excess moisture from the grated zucchini using a clean kitchen towel or cheesecloth. This critical step prevents soggy fritters and ensures a crisp exterior. Combine with corn kernels and sliced green onions in a large bowl, distributing the vegetables evenly.
Create the tempura batter:
Whisk the dry ingredients in a bowl until fully incorporated. The cornstarch and flour combination is essential for that characteristic tempura texture. In a separate bowl, beat the cold egg lightly before adding ice cold sparkling water. The temperature contrast is vital for creating the perfect batter consistency.
Combine with minimal mixing:
Pour the wet ingredients into the dry mixture, using chopsticks or a fork to mix with a light hand. The batter should remain slightly lumpy with visible flour streaks. Overmixing develops gluten and results in tough rather than airy fritters.
Fold in vegetables:
Gently incorporate the vegetable mixture into the batter with a folding motion rather than stirring. Each vegetable piece should be coated but still distinct, creating texture in the final fritter.
Fry to golden perfection:
Heat oil to exactly 350°F for optimal results. Use a candy thermometer for precision if possible. Drop batter by heaping tablespoons, being careful not to crowd the pan. Maintain oil temperature between batches for consistent results.
Drain and serve immediately:
Remove fritters with a slotted spoon and place on paper towels to absorb excess oil. Serve while still hot for the best texture contrast between the crisp exterior and tender vegetables inside.
Close-up view of crispy, golden-fried Tempura Sweet Corn Zucchini Fritters, showing the tender vegetable filling. Save
Close-up view of crispy, golden-fried Tempura Sweet Corn Zucchini Fritters, showing the tender vegetable filling. | fryzia.com

The combination of sweet corn and zucchini creates a perfect balance of flavor and texture that keeps me coming back to this recipe year after year. I particularly love using freshly harvested corn in late summer when its natural sweetness is at its peak. My children have even developed a fondness for zucchini through these fritters, which I consider a major culinary victory.

Temperature Matters

The secret to perfect tempura fritters lies entirely in temperature control. Using ice cold ingredients for the batter creates steam when it hits the hot oil, resulting in that characteristic light, crispy coating. I keep my sparkling water in the freezer for about 15 minutes before mixing the batter, and I even chill my mixing bowl. This attention to temperature makes all the difference between heavy, oil-soaked fritters and the airy delights this recipe produces.

Make Ahead Options

While these fritters are best enjoyed immediately after cooking, you can prepare components ahead of time to streamline the process. Grate and drain the zucchini up to a day in advance, storing it wrapped in the refrigerator. The dry ingredients can be whisked together and kept at room temperature for several hours. Just remember that once the batter is mixed, you should cook the fritters promptly before the leavening power diminishes.

Dipping Sauce Variations

These versatile fritters pair beautifully with a variety of dipping options. For a traditional Japanese approach, serve with ponzu sauce or tentsuyu tempura dipping sauce. For something with a kick, mix mayonnaise with sriracha and a squeeze of lime juice. My family favorite is a simple blend of soy sauce, rice vinegar, and a touch of honey, which complements the natural sweetness of the corn perfectly.

Seasonal Adaptations

Spring version substitutes fresh peas for corn and adds mint. Summer classic uses peak season corn and zucchini as written. Fall variation incorporates diced butternut squash and sage.

These delicate and flavorful Tempura Sweet Corn Zucchini Fritters are perfect for a vegetarian appetizer. Save
These delicate and flavorful Tempura Sweet Corn Zucchini Fritters are perfect for a vegetarian appetizer. | fryzia.com

Serve while still hot for the best texture contrast between the crisp exterior and tender vegetables inside.

Recipe FAQ Section

How do I make the tempura batter light and crispy?

Use ice-cold sparkling water and avoid overmixing to keep the batter airy and crisp.

Can I use frozen corn for these fritters?

Yes, thaw and drain frozen corn before mixing it in to prevent excess moisture.

What dipping sauce pairs well with these fritters?

Ponzu, soy sauce, or spicy mayonnaise complement the flavors wonderfully.

How do I prevent the fritters from becoming soggy?

Drain fritters on paper towels and serve immediately for best crispness.

Can I make these gluten-free?

Swap all-purpose flour for a gluten-free blend for a suitable alternative.

Is there a way to add extra flavor?

Add chili flakes or fresh herbs to the batter for an extra burst of flavor.

Tempura Sweet Corn Zucchini

Crispy fritters with sweet corn and zucchini in delicate tempura batter. Perfect for a light bite or appetizer.

Prep duration
15 min
Cook duration
20 min
Complete duration
35 min
Created by Samantha Rivera

Classification Sweet & Savory Fritters

Complexity Level Easy

Heritage Japanese-Inspired

Output 4 Portion Count

Dietary considerations Meat-Free

Components

Vegetables

01 1 medium zucchini, grated and excess moisture thoroughly squeezed out
02 1 cup sweet corn kernels (fresh or frozen, thawed)
03 2 green onions, finely sliced

Tempura Batter

01 3/4 cup all-purpose flour
02 2 tbsp cornstarch
03 1/2 tsp baking powder
04 1/2 tsp fine sea salt
05 1 large egg, chilled
06 3/4 cup ice-cold sparkling water

For Frying

01 Vegetable oil, for deep-frying

To Serve

01 Lemon wedges
02 Dipping sauce (e.g., ponzu or soy sauce)

Preparation Steps

Phase 01

Prepare Frying Environment: Heat approximately 2-3 inches of vegetable oil in a deep pan or deep fryer to maintain a consistent temperature of 350°F (175°C). Concurrently, prepare a plate lined with paper towels for draining the cooked fritters.

Phase 02

Combine Vegetable Components: In a generously sized mixing bowl, combine the grated zucchini, sweet corn kernels, and finely sliced green onions. Ensure the zucchini's moisture has been effectively removed prior to incorporation.

Phase 03

Prepare Dry Batter Ingredients: In a separate mixing bowl, thoroughly whisk together the all-purpose flour, cornstarch, baking powder, and fine sea salt until evenly distributed.

Phase 04

Form Wet Batter Mixture: In a third bowl, lightly beat the chilled egg. Then, incorporate the ice-cold sparkling water into the beaten egg. Introduce this liquid mixture into the bowl containing the dry ingredients. Gently combine using chopsticks or a fork until just incorporated, aiming for a lumpy consistency. Avoid overmixing to maintain a delicate texture.

Phase 05

Incorporate Vegetables into Batter: Carefully add the prepared vegetable mixture to the firmed batter. Gently fold the ingredients together to ensure the vegetables are evenly coated, without compromising the batter's airy structure.

Phase 06

Fry the Fritters: Using a tablespoon, carefully drop portions of the battered vegetables into the preheated oil. Fry in sequential batches, ensuring not to overcrowd the pan. Cook for approximately 2 to 3 minutes per side, or until the fritters achieve a golden brown hue and a crisp exterior.

Phase 07

Drain and Serve: Utilize a slotted spoon to meticulously remove the cooked fritters from the hot oil. Transfer them immediately to the prepared paper towel-lined plate to drain excess oil. Serve these fritters promptly while hot, accompanied by lemon wedges and your preferred dipping sauce.

Necessary tools

  • Multiple mixing bowls
  • Whisk
  • Deep pan or deep fryer
  • Slotted spoon
  • Paper towels

Allergy information

Review all ingredients for potential allergens and consult with healthcare providers if you're uncertain about any item.
  • Contains: Egg, Wheat (gluten)
  • Please verify the ingredient list of your chosen dipping sauces for any potential soy or gluten content.

Nutrient breakdown (per portion)

These values are approximate and shouldn't replace professional medical guidance.
  • Energy Value: 210
  • Fat: 9 g
  • Carbohydrates: 28 g
  • Protein Content: 5 g