There’s something almost magical about that first bite of tempura—the shatteringly light crunch followed by the tender prawn or vegetable inside. It’s comfort food that manages to feel elegant at the same time, making it a hit whether you’re feeding picky kids or impressing dinner guests.
The beauty of Japanese tempura is that it doesn’t require fancy tools or obscure ingredients. With just a few fresh prawns, seasonal vegetables, and a simple batter, you can fry up a golden, crisp treat in under 30 minutes. And yes, I said simple. We’re talking three ingredients in the batter—flour, ice water, and (here’s the kicker) a touch of mayonnaise for that airy crunch. No stress, no complicated steps.
This recipe for crispy prawn tempura and vegetable tempura is a weeknight lifesaver when you want something quick but crave-worthy. It’s also the kind of dish that makes family meals feel special, even if you’re just sitting around the kitchen table in sweatpants. Ready to give it a try? Let’s make your kitchen smell like a Japanese izakaya tonight.
Why You’ll Love This Tempura
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Quick prep: From start to finish, you’re eating in under half an hour.
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Light and crispy: Thanks to the icy water and mayo trick, your batter won’t weigh you down.
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Versatile: Prawns, sweet potatoes, mushrooms, or whatever veggies are in your fridge—tempura welcomes them all.
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Authentic flavour: Paired with homemade tentsuyu dipping sauce, this tastes just like what you’d order in Tokyo.
Ingredients
For the Tempura:
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4 prawns
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4 slices purple sweet potato
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2 slices lotus root (renkon)
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2 shiso leaves
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2 shiitake mushrooms
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1 chikuwa fish cake (optional, sub with green beans or shishito peppers)
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Oil for deep frying
For the Batter:
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50 g (½ cup) plain flour
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75 ml (⅓ cup) ice-cold water
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15 ml (1 tbsp) Kewpie mayonnaise
For Tentsuyu Dipping Sauce:
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240 ml (1 cup) water
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2 g (½ tbsp) dashi powder
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60 ml (¼ cup) mirin
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60 ml (¼ cup) soy sauce
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60 ml (¼ cup) grated daikon
Step-by-Step Instructions
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Prep ingredients – Clean and peel the prawns. Slice the sweet potato and lotus root thin enough to cook quickly. Wipe mushrooms clean, and keep everything patted dry (wet veggies cause splatter!).
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Make the batter – In a chilled bowl, gently whisk together flour, ice-cold water, and mayo. Lumps are totally fine—overmixing makes the coating heavy. Keep it cold until frying.
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Heat the oil – In a deep pan, heat vegetable oil to 180°C (355°F). A chopstick tip dipped in the oil should release tiny bubbles when it’s ready.
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Dip and fry – Coat each prawn and vegetable lightly in batter, then slip them into the oil. Fry in small batches for 2–3 minutes until golden and crisp. A gentle vibration through chopsticks means they’re done.
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Drain – Lift out with chopsticks or tongs and set on paper towels to soak up excess oil.
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Make tentsuyu – In a small saucepan, boil mirin for 1 minute. Add water, soy sauce, and dashi powder. Simmer briefly, then remove from heat. Stir in grated daikon before serving.
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Serve immediately – Tempura waits for no one. Crispy perfection is fleeting—enjoy it hot with dipping sauce.
Cooking Tips for the Best Japanese Tempura
Here’s the deal: tempura can be tricky if you overthink it. But if you keep these tips in mind, you’ll be golden—literally.
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Cold batter = crispy tempura. Stick that bowl in the fridge until you’re ready.
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Don’t overmix. A few lumps are your friends. Smooth batter makes a heavy, greasy coating.
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Work in small batches. Frying too many pieces drops the oil temperature and ruins that crunch.
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Chopsticks are secret weapons. They let you feel when food is cooked through—little vibrations mean it’s done.
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Eat right away. Tempura loses its crisp faster than kids lose socks in the laundry. Serve it hot!
My Tempura Story
Tempura has always held a soft spot in my heart because it was one of the first “fancy” dishes I ever tried making at home. I remember nervously heating oil, convinced my kitchen would turn into a fireworks show. Instead, what I got was light, crunchy bliss that my family devoured in record time.
Now, it’s become our family’s Friday night ritual. My kids love helping choose the vegetables—sometimes it’s sweet potatoes, sometimes zucchini or bell peppers, depending on what’s hanging out in the fridge. And my husband? He always claims the last prawn like it’s a championship prize.
For me, tempura is more than just fried food—it’s an experience. The sizzling oil, the golden crust, the way everyone gathers around the table dipping and crunching in sync—it’s pure joy. If you’ve ever needed a pick-me-up meal, tempura will do the trick.
What to Serve with Tempura
Tempura shines as the star of the show, but it loves good company:
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Rice – A simple bowl of steamed rice balances the richness beautifully.
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Miso Soup – Adds a warm, comforting sidekick.
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Pickles (Tsukemono) – Crunchy and tangy, they cleanse your palate between bites.
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Green Salad – Tossed with a sesame dressing, it lightens the meal.
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Cold Beer or Green Tea – Because nothing beats crispy tempura with the right drink.
For a full Japanese-inspired dinner, pair prawn and vegetable tempura with rice, soup, and salad, and you’ve got a spread that rivals your favourite restaurant.
How to Store Tempura
Here’s the truth: tempura is best eaten fresh. That said, leftovers do happen (rarely, but hey, miracles exist).
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Room temperature: Never leave it out for more than 2 hours.
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Fridge: Store cooled tempura in an airtight container lined with paper towels. It’ll keep for up to 2 days.
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Reheating: Skip the microwave—it makes tempura sad and soggy. Instead, reheat in an oven or toaster oven at 375°F for 8–10 minutes until crisp again. An air fryer also works wonders.
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Freezing: You can freeze tempura, but it’s not ideal. If you must, freeze in a single layer, then transfer to a freezer bag. Reheat directly from frozen in the oven.
But honestly? Just make enough to eat fresh—you won’t regret it.
FAQs About Tempura
Can I substitute the prawns in crispy prawn tempura?
Absolutely! Chicken strips, tofu, or extra veggies like zucchini or bell peppers work just as well.
What’s the secret to the lightest tempura batter?
Ice-cold water and minimal mixing. Some people swear by sparkling water, but mayo in this recipe does the trick perfectly.
Can I make tempura gluten-free?
Yes—just swap plain flour for rice flour. You’ll actually get an even lighter crunch!
Is vegetable tempura healthier than prawn tempura?
Both are indulgent, but vegetable tempura is a little lighter. Think of it as eating your veggies—just in a crispier, more fun form.
Do I really need to make the tentsuyu sauce?
Highly recommend it. It elevates the dish from “fried food” to “authentic Japanese tempura experience.”
Bringing It All Together
At the end of the day, tempura is proof that simple ingredients can create something spectacular. A few prawns, some vegetables, and a quick batter transform into a dish that brings people to the table with smiles and chopsticks ready.
The best part? You don’t need to be a seasoned chef to pull it off. With a little ice water, a hot pan of oil, and a dash of courage, you can make restaurant-quality tempura right at home. So the next time you’re craving a meal that’s crispy, comforting, and just plain fun—give this recipe a go. Who knows? It might just become your family’s new Friday night favorite, too.
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Crispy Prawn & Vegetable Tempura
- Total Time: 30 minutes
- Yield: Serves 2–3 1x
Description
Japanese Tempura is the perfect balance of light, crispy batter and tender prawns or vegetables inside. With a simple three-ingredient batter—flour, ice-cold water, and a touch of mayonnaise—you can fry up restaurant-quality tempura at home in under 30 minutes. Paired with classic tentsuyu dipping sauce, it’s a versatile and crave-worthy dish that works for both casual dinners and special occasions.
Ingredients
For the Tempura:
-
4 prawns
-
4 slices purple sweet potato
-
2 slices lotus root (renkon)
-
2 shiso leaves
-
2 shiitake mushrooms
-
1 chikuwa fish cake (optional; substitute green beans or shishito peppers)
-
Oil for deep frying
For the Batter:
-
50 g (½ cup) plain flour
-
75 ml (⅓ cup) ice-cold water
-
15 ml (1 tbsp) Kewpie mayonnaise
For Tentsuyu Dipping Sauce:
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240 ml (1 cup) water
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2 g (½ tbsp) dashi powder
-
60 ml (¼ cup) mirin
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60 ml (¼ cup) soy sauce
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60 ml (¼ cup) grated daikon
Instructions
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Prepare ingredients: Clean and peel prawns. Slice vegetables thinly so they cook quickly. Pat everything dry to avoid oil splatter.
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Make the batter: In a chilled bowl, gently whisk flour, ice-cold water, and mayonnaise. Do not overmix—lumps are fine. Keep batter cold until ready to use.
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Heat the oil: Heat oil in a deep pan to 180°C (355°F). Test with chopsticks; tiny bubbles mean it’s ready.
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Dip & fry: Coat prawns and vegetables lightly in batter. Fry in small batches for 2–3 minutes until golden and crisp. A light vibration through chopsticks indicates doneness.
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Drain: Transfer to paper towels to absorb excess oil.
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Make dipping sauce: In a small saucepan, boil mirin for 1 minute. Add water, soy sauce, and dashi powder. Simmer briefly, remove from heat, and stir in grated daikon.
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Serve: Enjoy immediately while hot and crispy with dipping sauce.
Notes
Cold batter creates lighter, crispier coating—keep it chilled.
Don’t overmix batter; it should be lumpy.
Fry in small batches to maintain oil temperature.
Tempura is best eaten immediately.
For gluten-free tempura, substitute rice flour for plain flour.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Category: Entrées
- Method: Deep-Fry
- Cuisine: Japanese