Crispy Sweet Potato Tempura Recipe You’ll Love to Make

Anna

Sharing stories, traditions, and flavors

Sweet Potato Tempura

There’s something truly delightful about the crisp whisper of tempura batter shrouding tender slices of sweet potato. I discovered sweet potato tempura on a quiet evening when I craved comfort food that wasn’t just satisfying but also a little playful. Its golden, crunchy exterior paired with the naturally sweet, creamy interior creates a balance that’s hard to resist. Whether you’re a home cook tired of the usual fast food rotation or a chef seeking a versatile side that wows with minimal effort, this recipe fits the bill perfectly. It’s quick, fun to make, and a guaranteed crowd-pleaser that brings a bit of elegance to your everyday meals. Let me take you through how to turn humble sweet potatoes into an irresistible tempura treat that will soon become a favorite in your kitchen.

Why choose Sweet Potato Tempura today?

Crispy Delight: Every bite delivers a light, crunchy tempura batter that perfectly contrasts the tender sweet potato inside. Simple Prep: With minimal ingredients and quick frying, this recipe saves time without sacrificing flavor. Versatile Pairing: Enjoy it solo as a snack or alongside your favorite dipping sauces and mains. Natural Sweetness: The inherent sweetness of the potato shines through, balancing the savory crunch. Crowd-Pleaser: Easy to make in batches, it’s guaranteed to impress friends and family alike.

Sweet Potato Tempura Ingredients

For the Sweet Potato Tempura Batter

  • All-purpose flour – Use cold flour to keep the batter light and crispy.
  • Cornstarch – Helps create that signature tempura crunch you’ll love.
  • Ice-cold sparkling water – Adds airiness; the secret behind a delicate batter.
  • Egg yolk – Binds the batter while keeping it silky and light.
  • Salt – Enhances the subtle sweetness of the sweet potato.

For the Sweet Potatoes

  • Sweet potatoes – Choose firm, medium-sized ones for the perfect tender bite.
  • Vegetable oil – Use a neutral oil with a high smoke point for frying.

Optional for Serving

  • Soy sauce or tentsuyu dipping sauce – A classic complement that highlights the crispy texture.
  • Grated daikon radish – Adds a refreshing touch often paired with Sweet Potato Tempura.

How to Make Sweet Potato Tempura

For the Batter:

  1. Whisk the dry ingredients: In a medium bowl, whisk together all-purpose flour, cornstarch, and salt until evenly pale, streak-free, and well combined.
  2. Mix in wet: Add egg yolk and ice-cold sparkling water, stirring gently until just combined; keep some lumps for extra crispiness.

For the Sweet Potato:

  1. Prep the potatoes: Peel and slice sweet potatoes into 1/4-inch rounds, then pat dry with paper towels to prevent oil splatter.
  2. Heat the oil: In a deep pot, heat neutral vegetable oil to 350°F (180°C) until it shimmers and forms tiny bubbles around a wooden chopstick.
  3. Dip slices: Slide sweet potato rounds into the batter, coating each piece fully, then gently shake off excess drips back into the bowl.
  4. Fry until golden: Carefully lower battered slices into hot oil in batches, frying for 2–3 minutes until crispy and light golden brown. Drain on paper towels.
  5. Serve warm: Arrange the crispy rounds on a platter, garnish with grated daikon or fresh scallions, and serve alongside soy sauce or tentsuyu dipping sauce.

Optional: Sprinkle with shichimi togarashi for an extra spicy kick.
Exact quantities are listed in the recipe card below.

Make Ahead Options

Sweet Potato Tempura is perfect for busy home cooks looking to streamline mealtime! You can prep the batter up to 24 hours in advance by combining the dry ingredients and storing them in an airtight container. Once ready to cook, simply whisk in the egg yolk and ice-cold sparkling water, ensuring to keep a few lumps for that signature crunch. Additionally, peel and slice the sweet potatoes and refrigerate them (in an airtight container) for up to 3 days to maintain their freshness. Just before frying, pat them dry, dip in the prepared batter, and fry for 2–3 minutes until golden. This way, you’ll enjoy delicious, homemade Sweet Potato Tempura with minimal effort on busy weeknights!

What to Serve with Sweet Potato Tempura?

There’s something magical about pairing dishes that create a symphony of flavors and textures on your plate.

  • Soy Dipping Sauce: A must-have for every tempura dish, this savory sauce enhances the sweet notes of your crispy bites.

  • Sushi Rice: Serve alongside perfectly seasoned sushi rice for a delightful meal that marries the crispness of tempura with a soft, comforting base.

  • Cabbage Slaw: Crunchy, zesty slaw adds a refreshing contrast to the rich, crispy tempura. The bright flavors elevate each bite.

  • Miso Soup: Warm, umami-filled miso soup complements the sweet potato tempura beautifully, creating a soothing dining experience.

  • Grilled Salmon: The rich, fatty flavor of grilled salmon contrasts wonderfully with the sweet, crunchy tempura, adding a beautiful balance to your meal.

  • Green Tea: Sip on a cup of freshly brewed green tea; its subtle herbal notes cleanse the palate and enhance the overall dining experience.

  • Chilled Sake: For a Japanese-inspired pairing, serve chilled sake to complement the minimalistic flavors of tempura while elevating your meal.

  • Mango Sorbet: A light, refreshing finish, this sorbet provides a sweet and fruity finale that contrasts beautifully with the savory tempura.

Expert Tips for Sweet Potato Tempura

  • Use Ice-Cold Water: Always use ice-cold sparkling water to keep the batter light and crispy; warm water will make it gloopy and heavy.
  • Do Not Overmix Batter: Stir just enough to combine ingredients—lumps are welcome and help create that signature crunch in sweet potato tempura.
  • Dry Your Potatoes Well: Patting sweet potato slices completely dry before battering prevents oil splatter and ensures even frying.
  • Maintain Oil Temperature: Keep the oil steady at 350°F (180°C); too hot burns batter, too cool makes it soggy and greasy.
  • Fry in Small Batches: Crowding the pot lowers oil temperature, causing soggy, oily tempura. Fry a few pieces at a time for perfect crispiness.
  • Serve Immediately: Sweet potato tempura tastes best fresh out of the oil—serve right away to enjoy that delightful crisp texture.

How to Store and Freeze Sweet Potato Tempura

  • Room Temperature: Allow leftovers to cool completely, then store in an airtight container. Enjoy within 1 day for optimal crunch.
  • Fridge: Sweet potato tempura can be refrigerated for up to 3 days; however, it may lose some crispiness. Reheat in the oven to restore texture.
  • Freezer: For longer storage, freeze cooked sweet potato tempura in a single layer, then transfer to a freezer-safe bag. Use within 2 months for best flavor.
  • Reheating: To reheat from the fridge or freezer, bake in a preheated oven at 400°F (200°C) for about 10-15 minutes, until hot and crispy again.

Sweet Potato Tempura Variations & Substitutions

Feel free to explore exciting twists on the classic sweet potato tempura that will delight your taste buds!

  • Gluten-Free: Use a blend of gluten-free all-purpose flour and cornstarch for a deliciously crispy alternative.

  • Savory Herb Infusion: Stir in finely chopped herbs like rosemary or thyme into the batter for an aromatic twist. This adds an earthy flavor that elevates the dish.

  • Spicy Kick: Mix in some cayenne pepper or chili powder to the batter for a fiery punch that contrasts beautifully with the sweet potato.

  • Sweet Coconut Variation: Swap out some of the flour for coconut flour for a hint of tropical sweetness that pairs well with the sweet potato. The texture becomes even more interesting, offering a unique flavor experience.

  • Sweet Potato Alternatives: Experiment with other root vegetables like zucchini or carrot for a colorful tempura platter; the batter works wonderfully with various veggies!

  • Panko Crunch: For an extra crunchy finish, coat the battered sweet potatoes in panko breadcrumbs before frying. The result is a delightful crisp texture that’s simply irresistible.

  • Citrus Zest: Add a teaspoon of lemon or lime zest to your batter to brighten the flavor profile; this citrusy hint pairs beautifully with the sweetness of the potatoes.

  • Sesame Oil Drizzle: Enhance the flavor with a touch of sesame oil in the batter or as a finishing drizzle. This addition brings depth and a nutty aroma that’s hard to resist.

Crispy Sweet Potato Tempura Recipe FAQs

How do I select the best sweet potatoes for tempura?
Look for medium-sized sweet potatoes that are firm with smooth, unblemished skin. Avoid any with dark spots or soft areas, as these indicate overripeness or spoilage, which can affect texture and taste.

What’s the best way to store leftover sweet potato tempura?
Once cooled, store leftovers in an airtight container in the refrigerator for up to 3 days. The tempura may soften but reheating in the oven at 400°F (200°C) for 10-15 minutes will help restore its crispy texture nicely.

Can I freeze sweet potato tempura? If so, how?
Absolutely! Freeze in a single layer on a baking sheet until firm (about 1-2 hours), then transfer to a freezer-safe bag or container. Use within 2 months. Reheat in the oven at 400°F (200°C) for 15-20 minutes, flipping halfway to regain crispiness.

What should I do if my tempura batter turns out soggy or greasy?
This usually means the oil temperature was too low. Keep your oil steady at 350°F (180°C) and avoid overcrowding the pan to maintain crunch. Also, use ice-cold sparkling water and don’t overmix the batter—lumps help keep it light.

Is sweet potato tempura safe for pets or those with allergies?
Sweet potato tempura is not recommended for pets due to frying oil and batter ingredients. For common allergies, be mindful of egg in the batter and wheat flour, which some may avoid. Gluten-free or egg-free adaptations are possible with specialty flours and substitutes.

Sweet Potato Tempura

Crispy Sweet Potato Tempura Recipe You’ll Love to Make

Delight in the crispy and tender Sweet Potato Tempura, a playful comfort food that's quick and easy to make.
Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Servings: 4 servings
Course: Appetizer
Cuisine: Japanese
Calories: 250

Ingredients
  

Tempura Batter
  • 1 cup All-purpose flour Use cold flour to keep the batter light and crispy
  • 1/4 cup Cornstarch Helps create that signature tempura crunch
  • 1 cup Ice-cold sparkling water Adds airiness for a delicate batter
  • 1 large Egg yolk Binds the batter while keeping it silky and light
  • 1/2 teaspoon Salt Enhances the sweet potato's sweetness
Sweet Potatoes
  • 2 medium Sweet potatoes Choose firm ones for tender bites
  • 4 cups Vegetable oil Use a neutral oil with a high smoke point for frying
Optional for Serving
  • 1/4 cup Soy sauce Classic complement for tempura
  • 1/2 cup Grated daikon radish Adds a refreshing touch

Equipment

  • Medium bowl
  • Deep pot
  • Whisk
  • Spatula
  • Paper towels
  • Platter

Method
 

Batter Preparation
  1. Whisk the dry ingredients: In a medium bowl, whisk together all-purpose flour, cornstarch, and salt until evenly pale, streak-free, and well combined.
  2. Mix in wet: Add egg yolk and ice-cold sparkling water, stirring gently until just combined; keep some lumps for extra crispiness.
Sweet Potato Preparation
  1. Prep the potatoes: Peel and slice sweet potatoes into 1/4-inch rounds, then pat dry with paper towels to prevent oil splatter.
  2. Heat the oil: In a deep pot, heat neutral vegetable oil to 350°F (180°C) until it shimmers and forms tiny bubbles around a wooden chopstick.
  3. Dip slices: Slide sweet potato rounds into the batter, coating each piece fully, then gently shake off excess drips back into the bowl.
  4. Fry until golden: Carefully lower battered slices into hot oil in batches, frying for 2–3 minutes until crispy and light golden brown. Drain on paper towels.
  5. Serve warm: Arrange the crispy rounds on a platter, garnish with grated daikon or fresh scallions, and serve alongside soy sauce or tentsuyu dipping sauce.

Nutrition

Serving: 1servingCalories: 250kcalCarbohydrates: 35gProtein: 3gFat: 12gSaturated Fat: 1gPolyunsaturated Fat: 2gMonounsaturated Fat: 7gCholesterol: 50mgSodium: 400mgPotassium: 350mgFiber: 3gSugar: 5gVitamin A: 16000IUVitamin C: 25mgCalcium: 20mgIron: 1mg

Notes

Sweet potato tempura tastes best fresh out of the oil—serve right away to enjoy that delightful crisp texture.

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